JavaScript |
Yes, but not up to date (10 days older). Edit. |
A re-introduction to JavaScript (JS tutorial) |
Yes, but not up to date (70 days older). Edit. |
About JavaScript |
Yes, but not up to date (223 days older). Edit. |
Closures |
Not available. Translate now. |
Concurrency model and Event Loop |
Not available. Translate now. |
Enumerability and ownership of properties |
Yes, but translation in progress. Edit. |
Equality comparisons and sameness |
Not available. Translate now. |
Index |
Not available. Translate now. |
Inheritance and the prototype chain |
Not available. Translate now. |
Introduction to Object-Oriented JavaScript |
Yes, but not up to date (56 days older). Edit. |
JavaScript Guide |
Yes, but translation in progress. Edit. |
Control flow and error handling |
Yes, but not up to date (45 days older). Edit. |
Details of the object model |
Yes, but not up to date (21 days older). Edit. |
Expressions and operators |
Not available. Translate now. |
Functions |
Yes, but not up to date (70 days older). Edit. |
Grammar and types |
Yes, but not up to date (12 days older). Edit. |
Indexed collections |
Not available. Translate now. |
Introduction |
Yes, and up to date. |
Iterators and generators |
Not available. Translate now. |
Keyed collections |
Yes, but not up to date (343 days older). Edit. |
Loops and iteration |
Yes, but not up to date (14 days older). Edit. |
Meta programming |
Not available. Translate now. |
Numbers and dates |
Not available. Translate now. |
Regular Expressions |
Yes, but translation in progress. Edit. |
Text formatting |
Not available. Translate now. |
Working with objects |
Yes, but not up to date (72 days older). Edit. |
JavaScript data types and data structures |
Not available. Translate now. |
JavaScript language resources |
Yes, and up to date. |
JavaScript reference |
Yes, and up to date. |
About this reference |
Not available. Translate now. |
Classes |
Yes, but not up to date (306 days older). Edit. |
constructor |
Not available. Translate now. |
extends |
Not available. Translate now. |
static |
Yes, but not up to date (139 days older). Edit. |
Deprecated and obsolete features |
Not available. Translate now. |
The legacy Iterator protocol |
Not available. Translate now. |
Expressions and operators |
Yes, and up to date. |
Arithmetic operators |
Not available. Translate now. |
Array comprehensions |
Not available. Translate now. |
Assignment operators |
Not available. Translate now. |
Bitwise operators |
Not available. Translate now. |
Comma operator |
Not available. Translate now. |
Comparison operators |
Not available. Translate now. |
Conditional (ternary) Operator |
Not available. Translate now. |
Destructuring assignment |
Not available. Translate now. |
Expression closures |
Not available. Translate now. |
Generator comprehensions |
Not available. Translate now. |
Grouping operator |
Not available. Translate now. |
Legacy generator function expression |
Not available. Translate now. |
Logical Operators |
Not available. Translate now. |
Object initializer |
Not available. Translate now. |
Operator precedence |
Not available. Translate now. |
Property accessors |
Not available. Translate now. |
Spread syntax |
Not available. Translate now. |
class expression |
Not available. Translate now. |
delete operator |
Not available. Translate now. |
function expression |
Not available. Translate now. |
function* expression |
Not available. Translate now. |
in operator |
Not available. Translate now. |
instanceof |
Not available. Translate now. |
new operator |
Not available. Translate now. |
new.target |
Not available. Translate now. |
super |
Not available. Translate now. |
this |
Yes, but translation in progress. Edit. |
typeof |
Yes, but not up to date (57 days older). Edit. |
void operator |
Not available. Translate now. |
yield |
Not available. Translate now. |
yield* |
Not available. Translate now. |
Functions |
Yes, but not up to date (8 hours older). Edit. |
Arguments object |
Yes, and up to date. |
arguments.callee |
Not available. Translate now. |
arguments.caller |
Not available. Translate now. |
arguments.length |
Not available. Translate now. |
arguments[@@iterator]() |
Not available. Translate now. |
Arrow functions |
Yes, but not up to date (470 days older). Edit. |
Default parameters |
Not available. Translate now. |
Method definitions |
Not available. Translate now. |
Rest parameters |
Not available. Translate now. |
getter |
Not available. Translate now. |
setter |
Not available. Translate now. |
Iteration protocols |
Not available. Translate now. |
JavaScript error reference |
Not available. Translate now. |
Error: Permission denied to access property "x" |
Not available. Translate now. |
InternalError: too much recursion |
Not available. Translate now. |
RangeError: argument is not a valid code point |
Not available. Translate now. |
RangeError: invalid array length |
Not available. Translate now. |
RangeError: precision is out of range |
Not available. Translate now. |
RangeError: radix must be an integer |
Not available. Translate now. |
RangeError: repeat count must be less than infinity |
Not available. Translate now. |
RangeError: repeat count must be non-negative |
Not available. Translate now. |
ReferenceError: "x" is not defined |
Not available. Translate now. |
ReferenceError: assignment to undeclared variable "x" |
Not available. Translate now. |
ReferenceError: deprecated caller or arguments usage |
Not available. Translate now. |
ReferenceError: invalid assignment left-hand side |
Not available. Translate now. |
ReferenceError: reference to undefined property "x" |
Not available. Translate now. |
SyntaxError: "x" is not a legal ECMA-262 octal constant |
Not available. Translate now. |
SyntaxError: JSON.parse: bad parsing |
Not available. Translate now. |
SyntaxError: Malformed formal parameter |
Not available. Translate now. |
SyntaxError: Unexpected token |
Not available. Translate now. |
SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //# instead |
Not available. Translate now. |
SyntaxError: missing ) after argument list |
Not available. Translate now. |
SyntaxError: missing ; before statement |
Not available. Translate now. |
SyntaxError: missing ] after element list |
Not available. Translate now. |
SyntaxError: missing } after property list |
Not available. Translate now. |
SyntaxError: redeclaration of formal parameter "x" |
Not available. Translate now. |
SyntaxError: return not in function |
Not available. Translate now. |
SyntaxError: test for equality (==) mistyped as assignment (=)? |
Not available. Translate now. |
SyntaxError: unterminated string literal |
Not available. Translate now. |
TypeError: "x" has no properties |
Not available. Translate now. |
TypeError: "x" is (not) "y" |
Not available. Translate now. |
TypeError: "x" is not a constructor |
Not available. Translate now. |
TypeError: "x" is not a function |
Not available. Translate now. |
TypeError: "x" is read-only |
Not available. Translate now. |
TypeError: More arguments needed |
Not available. Translate now. |
TypeError: invalid Array.prototype.sort argument |
Not available. Translate now. |
TypeError: property "x" is non-configurable and can't be deleted |
Not available. Translate now. |
TypeError: variable "x" redeclares argument |
Not available. Translate now. |
Warning: -file- is being assigned a //# sourceMappingURL, but already has one |
Not available. Translate now. |
Warning: JavaScript 1.6's for-each-in loops are deprecated |
Not available. Translate now. |
Warning: unreachable code after return statement |
Not available. Translate now. |
JavaScript methods index |
Not available. Translate now. |
JavaScript properties index |
Not available. Translate now. |
Lexical grammar |
Not available. Translate now. |
Standard built-in objects |
Yes, and up to date. |
Array |
Yes, but not up to date (33 days older). Edit. |
Array.from() |
Not available. Translate now. |
Array.isArray() |
Yes, but translation in progress. Edit. |
Array.observe() |
Not available. Translate now. |
Array.of() |
Not available. Translate now. |
Array.prototype |
Not available. Translate now. |
Array.prototype.concat() |
Yes, but not up to date (30 days older). Edit. |
Array.prototype.copyWithin() |
Not available. Translate now. |
Array.prototype.entries() |
Yes, but not up to date (29 days older). Edit. |
Array.prototype.every() |
Not available. Translate now. |
Array.prototype.fill() |
Not available. Translate now. |
Array.prototype.filter() |
Yes, but not up to date (48 days older). Edit. |
Array.prototype.find() |
Yes, but not up to date (43 days older). Edit. |
Array.prototype.findIndex() |
Not available. Translate now. |
Array.prototype.forEach() |
Yes, but not up to date (44 days older). Edit. |
Array.prototype.includes() |
Not available. Translate now. |
Array.prototype.indexOf() |
Not available. Translate now. |
Array.prototype.join() |
Yes, but not up to date (31 days older). Edit. |
Array.prototype.keys() |
Not available. Translate now. |
Array.prototype.lastIndexOf() |
Not available. Translate now. |
Array.prototype.map() |
Not available. Translate now. |
Array.prototype.pop() |
Not available. Translate now. |
Array.prototype.push() |
Yes, but not up to date (162 days older). Edit. |
Array.prototype.reduce() |
Not available. Translate now. |
Array.prototype.reduceRight() |
Not available. Translate now. |
Array.prototype.reverse() |
Yes, but not up to date (605 days older). Edit. |
Array.prototype.shift() |
Not available. Translate now. |
Array.prototype.slice() |
Not available. Translate now. |
Array.prototype.some() |
Not available. Translate now. |
Array.prototype.sort() |
Yes, but not up to date (638 days older). Edit. |
Array.prototype.splice() |
Not available. Translate now. |
Array.prototype.toLocaleString() |
Not available. Translate now. |
Array.prototype.toSource() |
Not available. Translate now. |
Array.prototype.toString() |
Not available. Translate now. |
Array.prototype.unshift() |
Not available. Translate now. |
Array.prototype.values() |
Not available. Translate now. |
Array.prototype[@@iterator]() |
Not available. Translate now. |
Array.prototype[@@unscopables] |
Not available. Translate now. |
Array.unobserve() |
Not available. Translate now. |
array.length |
Not available. Translate now. |
get Array[@@species] |
Not available. Translate now. |
ArrayBuffer |
Yes, and up to date. |
ArrayBuffer.isView() |
Not available. Translate now. |
ArrayBuffer.prototype |
Yes, and up to date. |
ArrayBuffer.prototype.byteLength |
Not available. Translate now. |
ArrayBuffer.prototype.slice() |
Not available. Translate now. |
ArrayBuffer.transfer() |
Not available. Translate now. |
get ArrayBuffer[@@species] |
Not available. Translate now. |
Atomics |
Not available. Translate now. |
Atomics.add() |
Not available. Translate now. |
Atomics.and() |
Not available. Translate now. |
Atomics.compareExchange() |
Not available. Translate now. |
Atomics.exchange() |
Not available. Translate now. |
Atomics.isLockFree() |
Not available. Translate now. |
Atomics.load() |
Not available. Translate now. |
Atomics.or() |
Not available. Translate now. |
Atomics.store() |
Not available. Translate now. |
Atomics.sub() |
Not available. Translate now. |
Atomics.wait() |
Not available. Translate now. |
Atomics.wake() |
Not available. Translate now. |
Atomics.xor() |
Not available. Translate now. |
Boolean |
Not available. Translate now. |
Boolean.prototype |
Not available. Translate now. |
Boolean.prototype.toSource() |
Not available. Translate now. |
Boolean.prototype.toString() |
Not available. Translate now. |
Boolean.prototype.valueOf() |
Not available. Translate now. |
DataView |
Yes, but translation in progress. Edit. |
DataView.prototype |
Not available. Translate now. |
DataView.prototype.buffer |
Not available. Translate now. |
DataView.prototype.byteLength |
Not available. Translate now. |
DataView.prototype.byteOffset |
Not available. Translate now. |
DataView.prototype.getFloat32() |
Not available. Translate now. |
DataView.prototype.getFloat64() |
Not available. Translate now. |
DataView.prototype.getInt16() |
Not available. Translate now. |
DataView.prototype.getInt32() |
Not available. Translate now. |
DataView.prototype.getInt8() |
Not available. Translate now. |
DataView.prototype.getUint16() |
Not available. Translate now. |
DataView.prototype.getUint32() |
Not available. Translate now. |
DataView.prototype.getUint8() |
Not available. Translate now. |
DataView.prototype.setFloat32() |
Not available. Translate now. |
DataView.prototype.setFloat64() |
Not available. Translate now. |
DataView.prototype.setInt16() |
Not available. Translate now. |
DataView.prototype.setInt32() |
Not available. Translate now. |
DataView.prototype.setInt8() |
Not available. Translate now. |
DataView.prototype.setUint16() |
Not available. Translate now. |
DataView.prototype.setUint32() |
Not available. Translate now. |
DataView.prototype.setUint8() |
Not available. Translate now. |
Date |
Not available. Translate now. |
Date.UTC() |
Not available. Translate now. |
Date.now() |
Not available. Translate now. |
Date.parse() |
Not available. Translate now. |
Date.prototype |
Not available. Translate now. |
Date.prototype.getDate() |
Not available. Translate now. |
Date.prototype.getDay() |
Not available. Translate now. |
Date.prototype.getFullYear() |
Not available. Translate now. |
Date.prototype.getHours() |
Not available. Translate now. |
Date.prototype.getMilliseconds() |
Not available. Translate now. |
Date.prototype.getMinutes() |
Not available. Translate now. |
Date.prototype.getMonth() |
Not available. Translate now. |
Date.prototype.getSeconds() |
Not available. Translate now. |
Date.prototype.getTime() |
Not available. Translate now. |
Date.prototype.getTimezoneOffset() |
Not available. Translate now. |
Date.prototype.getUTCDate() |
Not available. Translate now. |
Date.prototype.getUTCDay() |
Not available. Translate now. |
Date.prototype.getUTCFullYear() |
Not available. Translate now. |
Date.prototype.getUTCHours() |
Not available. Translate now. |
Date.prototype.getUTCMilliseconds() |
Not available. Translate now. |
Date.prototype.getUTCMinutes() |
Not available. Translate now. |
Date.prototype.getUTCMonth() |
Not available. Translate now. |
Date.prototype.getUTCSeconds() |
Not available. Translate now. |
Date.prototype.getYear() |
Not available. Translate now. |
Date.prototype.setDate() |
Not available. Translate now. |
Date.prototype.setFullYear() |
Not available. Translate now. |
Date.prototype.setHours() |
Not available. Translate now. |
Date.prototype.setMilliseconds() |
Not available. Translate now. |
Date.prototype.setMinutes() |
Not available. Translate now. |
Date.prototype.setMonth() |
Not available. Translate now. |
Date.prototype.setSeconds() |
Not available. Translate now. |
Date.prototype.setTime() |
Not available. Translate now. |
Date.prototype.setUTCDate() |
Not available. Translate now. |
Date.prototype.setUTCFullYear() |
Not available. Translate now. |
Date.prototype.setUTCHours() |
Not available. Translate now. |
Date.prototype.setUTCMilliseconds() |
Not available. Translate now. |
Date.prototype.setUTCMinutes() |
Not available. Translate now. |
Date.prototype.setUTCMonth() |
Not available. Translate now. |
Date.prototype.setUTCSeconds() |
Not available. Translate now. |
Date.prototype.setYear() |
Not available. Translate now. |
Date.prototype.toDateString() |
Not available. Translate now. |
Date.prototype.toGMTString() |
Not available. Translate now. |
Date.prototype.toISOString() |
Not available. Translate now. |
Date.prototype.toJSON() |
Not available. Translate now. |
Date.prototype.toLocaleDateString() |
Not available. Translate now. |
Date.prototype.toLocaleFormat() |
Not available. Translate now. |
Date.prototype.toLocaleString() |
Not available. Translate now. |
Date.prototype.toLocaleTimeString() |
Not available. Translate now. |
Date.prototype.toSource() |
Not available. Translate now. |
Date.prototype.toString() |
Not available. Translate now. |
Date.prototype.toTimeString() |
Not available. Translate now. |
Date.prototype.toUTCString() |
Not available. Translate now. |
Date.prototype.valueOf() |
Not available. Translate now. |
Date.prototype[@@toPrimitive] |
Not available. Translate now. |
Error |
Yes, but translation in progress. Edit. |
Error.prototype |
Not available. Translate now. |
Error.prototype.columnNumber |
Yes, but not up to date (9 days older). Edit. |
Error.prototype.fileName |
Not available. Translate now. |
Error.prototype.lineNumber |
Not available. Translate now. |
Error.prototype.message |
Not available. Translate now. |
Error.prototype.name |
Not available. Translate now. |
Error.prototype.stack |
Not available. Translate now. |
Error.prototype.toSource() |
Not available. Translate now. |
Error.prototype.toString() |
Not available. Translate now. |
EvalError |
Not available. Translate now. |
EvalError.prototype |
Not available. Translate now. |
Float32Array |
Not available. Translate now. |
Float64Array |
Not available. Translate now. |
Function |
Yes, but translation in progress. Edit. |
Function.arguments |
Not available. Translate now. |
Function.arity |
Not available. Translate now. |
Function.caller |
Not available. Translate now. |
Function.displayName |
Not available. Translate now. |
Function.length |
Yes, but translation in progress. Edit. |
Function.name |
Not available. Translate now. |
Function.prototype |
Yes, but translation in progress. Edit. |
Function.prototype.apply() |
Not available. Translate now. |
Function.prototype.bind() |
Not available. Translate now. |
Function.prototype.call() |
Yes, but not up to date (34 days older). Edit. |
Function.prototype.isGenerator() |
Not available. Translate now. |
Function.prototype.toSource() |
Not available. Translate now. |
Function.prototype.toString() |
Not available. Translate now. |
Generator |
Not available. Translate now. |
Generator.prototype.next() |
Not available. Translate now. |
Generator.prototype.return() |
Not available. Translate now. |
Generator.prototype.throw() |
Not available. Translate now. |
GeneratorFunction |
Not available. Translate now. |
GeneratorFunction.prototype |
Not available. Translate now. |
Infinity |
Yes, but translation in progress. Edit. |
Int16Array |
Not available. Translate now. |
Int32Array |
Not available. Translate now. |
Int8Array |
Not available. Translate now. |
InternalError |
Not available. Translate now. |
InternalError.prototype |
Not available. Translate now. |
Intl |
Not available. Translate now. |
Intl.getCanonicalLocales() |
Not available. Translate now. |
Intl.Collator |
Not available. Translate now. |
Intl.Collator.prototype |
Not available. Translate now. |
Intl.Collator.prototype.compare |
Not available. Translate now. |
Intl.Collator.prototype.resolvedOptions() |
Not available. Translate now. |
Intl.Collator.supportedLocalesOf() |
Not available. Translate now. |
Intl.DateTimeFormat |
Not available. Translate now. |
Intl.DateTimeFormat.prototype |
Not available. Translate now. |
Intl.DateTimeFormat.prototype.format |
Not available. Translate now. |
Intl.DateTimeFormat.prototype.formatToParts() |
Not available. Translate now. |
Intl.DateTimeFormat.prototype.resolvedOptions() |
Not available. Translate now. |
Intl.DateTimeFormat.supportedLocalesOf() |
Not available. Translate now. |
Intl.NumberFormat |
Not available. Translate now. |
Intl.NumberFormat.prototype |
Not available. Translate now. |
Intl.NumberFormat.prototype.format |
Not available. Translate now. |
Intl.NumberFormat.prototype.resolvedOptions() |
Not available. Translate now. |
Intl.NumberFormat.supportedLocalesOf() |
Not available. Translate now. |
Iterator |
Not available. Translate now. |
JSON |
Yes, but translation in progress. Edit. |
JSON.parse() |
Yes, but translation in progress. Edit. |
JSON.stringify() |
Not available. Translate now. |
Map |
Not available. Translate now. |
Map.prototype |
Not available. Translate now. |
Map.prototype.clear() |
Not available. Translate now. |
Map.prototype.delete() |
Not available. Translate now. |
Map.prototype.entries() |
Not available. Translate now. |
Map.prototype.forEach() |
Not available. Translate now. |
Map.prototype.get() |
Not available. Translate now. |
Map.prototype.has() |
Not available. Translate now. |
Map.prototype.keys() |
Not available. Translate now. |
Map.prototype.set() |
Not available. Translate now. |
Map.prototype.size |
Not available. Translate now. |
Map.prototype.values() |
Not available. Translate now. |
Map.prototype[@@iterator]() |
Not available. Translate now. |
Map.prototype[@@toStringTag] |
Not available. Translate now. |
get Map[@@species] |
Not available. Translate now. |
Math |
Yes, but not up to date (370 days older). Edit. |
Math.E |
Not available. Translate now. |
Math.LN10 |
Not available. Translate now. |
Math.LN2 |
Not available. Translate now. |
Math.LOG10E |
Not available. Translate now. |
Math.LOG2E |
Not available. Translate now. |
Math.PI |
Not available. Translate now. |
Math.SQRT1_2 |
Not available. Translate now. |
Math.SQRT2 |
Not available. Translate now. |
Math.abs() |
Not available. Translate now. |
Math.acos() |
Not available. Translate now. |
Math.acosh() |
Not available. Translate now. |
Math.asin() |
Not available. Translate now. |
Math.asinh() |
Not available. Translate now. |
Math.atan() |
Not available. Translate now. |
Math.atan2() |
Not available. Translate now. |
Math.atanh() |
Not available. Translate now. |
Math.cbrt() |
Not available. Translate now. |
Math.ceil() |
Not available. Translate now. |
Math.clz32() |
Not available. Translate now. |
Math.cos() |
Not available. Translate now. |
Math.cosh() |
Not available. Translate now. |
Math.exp() |
Not available. Translate now. |
Math.expm1() |
Not available. Translate now. |
Math.floor() |
Not available. Translate now. |
Math.fround() |
Not available. Translate now. |
Math.hypot() |
Not available. Translate now. |
Math.imul() |
Not available. Translate now. |
Math.log() |
Not available. Translate now. |
Math.log10() |
Not available. Translate now. |
Math.log1p() |
Not available. Translate now. |
Math.log2() |
Not available. Translate now. |
Math.max() |
Not available. Translate now. |
Math.min() |
Not available. Translate now. |
Math.pow() |
Not available. Translate now. |
Math.random() |
Not available. Translate now. |
Math.round() |
Yes, but not up to date (344 days older). Edit. |
Math.sign() |
Not available. Translate now. |
Math.sin() |
Not available. Translate now. |
Math.sinh() |
Not available. Translate now. |
Math.sqrt() |
Not available. Translate now. |
Math.tan() |
Not available. Translate now. |
Math.tanh() |
Not available. Translate now. |
Math.trunc() |
Not available. Translate now. |
NaN |
Yes, but translation in progress. Edit. |
Number |
Not available. Translate now. |
Number.EPSILON |
Not available. Translate now. |
Number.MAX_SAFE_INTEGER |
Not available. Translate now. |
Number.MAX_VALUE |
Not available. Translate now. |
Number.MIN_SAFE_INTEGER |
Not available. Translate now. |
Number.MIN_VALUE |
Not available. Translate now. |
Number.NEGATIVE_INFINITY |
Not available. Translate now. |
Number.NaN |
Not available. Translate now. |
Number.POSITIVE_INFINITY |
Not available. Translate now. |
Number.isFinite() |
Not available. Translate now. |
Number.isInteger() |
Not available. Translate now. |
Number.isNaN() |
Not available. Translate now. |
Number.isSafeInteger() |
Not available. Translate now. |
Number.parseFloat() |
Not available. Translate now. |
Number.parseInt() |
Not available. Translate now. |
Number.prototype |
Not available. Translate now. |
Number.prototype.toExponential() |
Yes, but editorial review needed. Edit. |
Number.prototype.toFixed() |
Not available. Translate now. |
Number.prototype.toLocaleString() |
Not available. Translate now. |
Number.prototype.toPrecision() |
Not available. Translate now. |
Number.prototype.toSource() |
Not available. Translate now. |
Number.prototype.toString() |
Not available. Translate now. |
Number.prototype.valueOf() |
Not available. Translate now. |
Number.toInteger() |
Not available. Translate now. |
Object |
Yes, but translation in progress. Edit. |
Object.assign() |
Not available. Translate now. |
Object.create() |
Yes, but not up to date (24 days older). Edit. |
Object.defineProperties() |
Not available. Translate now. |
Object.defineProperty() |
Not available. Translate now. |
Additional examples for Object.defineProperty |
Not available. Translate now. |
Object.entries() |
Not available. Translate now. |
Object.freeze() |
Not available. Translate now. |
Object.getNotifier() |
Not available. Translate now. |
Object.getOwnPropertyDescriptor() |
Not available. Translate now. |
Object.getOwnPropertyDescriptors() |
Not available. Translate now. |
Object.getOwnPropertyNames() |
Not available. Translate now. |
Object.getOwnPropertySymbols() |
Not available. Translate now. |
Object.getPrototypeOf() |
Yes, but not up to date (273 days older). Edit. |
Object.is() |
Not available. Translate now. |
Object.isExtensible() |
Not available. Translate now. |
Object.isFrozen() |
Not available. Translate now. |
Object.isSealed() |
Not available. Translate now. |
Object.keys() |
Yes, but not up to date (26 days older). Edit. |
Object.observe() |
Not available. Translate now. |
Object.preventExtensions() |
Yes, but not up to date (195 days older). Edit. |
Object.prototype |
Yes, but not up to date (270 days older). Edit. |
Object.prototype.__count__ |
Not available. Translate now. |
Object.prototype.__defineGetter__() |
Not available. Translate now. |
Object.prototype.__defineSetter__() |
Not available. Translate now. |
Object.prototype.__lookupGetter__() |
Not available. Translate now. |
Object.prototype.__lookupSetter__() |
Not available. Translate now. |
Object.prototype.__noSuchMethod__ |
Not available. Translate now. |
Object.prototype.__parent__ |
Not available. Translate now. |
Object.prototype.__proto__ |
Not available. Translate now. |
Object.prototype.constructor |
Not available. Translate now. |
Object.prototype.eval() |
Not available. Translate now. |
Object.prototype.hasOwnProperty() |
Yes, but not up to date (272 days older). Edit. |
Object.prototype.isPrototypeOf() |
Not available. Translate now. |
Object.prototype.propertyIsEnumerable() |
Not available. Translate now. |
Object.prototype.toLocaleString() |
Not available. Translate now. |
Object.prototype.toSource() |
Not available. Translate now. |
Object.prototype.toString() |
Not available. Translate now. |
Object.prototype.unwatch() |
Not available. Translate now. |
Object.prototype.valueOf() |
Not available. Translate now. |
Object.prototype.watch() |
Not available. Translate now. |
Object.seal() |
Not available. Translate now. |
Object.setPrototypeOf() |
Not available. Translate now. |
Object.unobserve() |
Not available. Translate now. |
Object.values() |
Not available. Translate now. |
ParallelArray |
Not available. Translate now. |
Promise |
Not available. Translate now. |
Promise.all() |
Not available. Translate now. |
Promise.prototype |
Not available. Translate now. |
Promise.prototype.catch() |
Not available. Translate now. |
Promise.prototype.then() |
Not available. Translate now. |
Promise.race() |
Not available. Translate now. |
Promise.reject() |
Not available. Translate now. |
Promise.resolve() |
Not available. Translate now. |
Proxy |
Not available. Translate now. |
Proxy handler |
Not available. Translate now. |
handler.apply() |
Not available. Translate now. |
handler.construct() |
Not available. Translate now. |
handler.defineProperty() |
Not available. Translate now. |
handler.deleteProperty() |
Not available. Translate now. |
handler.enumerate() |
Not available. Translate now. |
handler.get() |
Not available. Translate now. |
handler.getOwnPropertyDescriptor() |
Not available. Translate now. |
handler.getPrototypeOf() |
Not available. Translate now. |
handler.has() |
Not available. Translate now. |
handler.isExtensible() |
Not available. Translate now. |
handler.ownKeys() |
Not available. Translate now. |
handler.preventExtensions() |
Not available. Translate now. |
handler.set() |
Not available. Translate now. |
handler.setPrototypeOf() |
Not available. Translate now. |
Proxy.revocable() |
Not available. Translate now. |
RangeError |
Not available. Translate now. |
RangeError.prototype |
Not available. Translate now. |
ReferenceError |
Not available. Translate now. |
ReferenceError.prototype |
Not available. Translate now. |
Reflect |
Not available. Translate now. |
Reflect.apply() |
Not available. Translate now. |
Reflect.construct() |
Not available. Translate now. |
Reflect.defineProperty() |
Not available. Translate now. |
Reflect.deleteProperty() |
Not available. Translate now. |
Reflect.enumerate() |
Not available. Translate now. |
Reflect.get() |
Not available. Translate now. |
Reflect.getOwnPropertyDescriptor() |
Not available. Translate now. |
Reflect.getPrototypeOf() |
Not available. Translate now. |
Reflect.has() |
Not available. Translate now. |
Reflect.isExtensible() |
Not available. Translate now. |
Reflect.ownKeys() |
Not available. Translate now. |
Reflect.preventExtensions() |
Not available. Translate now. |
Reflect.set() |
Not available. Translate now. |
Reflect.setPrototypeOf() |
Not available. Translate now. |
RegExp |
Not available. Translate now. |
RegExp.$1-$9 |
Not available. Translate now. |
RegExp.input ($_) |
Not available. Translate now. |
RegExp.lastMatch ($&) |
Not available. Translate now. |
RegExp.lastParen ($+) |
Not available. Translate now. |
RegExp.leftContext ($`) |
Not available. Translate now. |
RegExp.prototype |
Not available. Translate now. |
RegExp.prototype.compile() |
Not available. Translate now. |
RegExp.prototype.exec() |
Not available. Translate now. |
RegExp.prototype.flags |
Not available. Translate now. |
RegExp.prototype.global |
Not available. Translate now. |
RegExp.prototype.ignoreCase |
Not available. Translate now. |
RegExp.prototype.multiline |
Not available. Translate now. |
RegExp.prototype.source |
Not available. Translate now. |
RegExp.prototype.sticky |
Not available. Translate now. |
RegExp.prototype.test() |
Not available. Translate now. |
RegExp.prototype.toSource() |
Not available. Translate now. |
RegExp.prototype.toString() |
Not available. Translate now. |
RegExp.prototype.unicode |
Not available. Translate now. |
RegExp.prototype[@@match]() |
Not available. Translate now. |
RegExp.prototype[@@replace]() |
Not available. Translate now. |
RegExp.prototype[@@search]() |
Not available. Translate now. |
RegExp.prototype[@@split]() |
Not available. Translate now. |
RegExp.rightContext ($') |
Not available. Translate now. |
get RegExp[@@species] |
Not available. Translate now. |
regexp.lastIndex |
Not available. Translate now. |
SIMD |
Not available. Translate now. |
SIMD.%type%.abs() |
Not available. Translate now. |
SIMD.%type%.add() |
Not available. Translate now. |
SIMD.%type%.addSaturate() |
Not available. Translate now. |
SIMD.%type%.allTrue() |
Not available. Translate now. |
SIMD.%type%.and() |
Not available. Translate now. |
SIMD.%type%.anyTrue() |
Not available. Translate now. |
SIMD.%type%.check() |
Not available. Translate now. |
SIMD.%type%.div() |
Not available. Translate now. |
SIMD.%type%.equal() |
Not available. Translate now. |
SIMD.%type%.extractLane() |
Not available. Translate now. |
SIMD.%type%.fromFloat32x4() |
Not available. Translate now. |
SIMD.%type%.fromFloat32x4Bits() |
Not available. Translate now. |
SIMD.%type%.fromFloat64x2Bits() |
Not available. Translate now. |
SIMD.%type%.fromInt16x8Bits() |
Not available. Translate now. |
SIMD.%type%.fromInt32x4() |
Not available. Translate now. |
SIMD.%type%.fromInt32x4Bits() |
Not available. Translate now. |
SIMD.%type%.fromInt8x16Bits() |
Not available. Translate now. |
SIMD.%type%.fromUint16x8Bits() |
Not available. Translate now. |
SIMD.%type%.fromUint32x4() |
Not available. Translate now. |
SIMD.%type%.fromUint32x4Bits() |
Not available. Translate now. |
SIMD.%type%.fromUint8x16Bits() |
Not available. Translate now. |
SIMD.%type%.greaterThan() |
Not available. Translate now. |
SIMD.%type%.greaterThanOrEqual() |
Not available. Translate now. |
SIMD.%type%.lessThan() |
Not available. Translate now. |
SIMD.%type%.lessThanOrEqual() |
Not available. Translate now. |
SIMD.%type%.load() |
Not available. Translate now. |
SIMD.%type%.max() |
Not available. Translate now. |
SIMD.%type%.maxNum() |
Not available. Translate now. |
SIMD.%type%.min() |
Not available. Translate now. |
SIMD.%type%.minNum() |
Not available. Translate now. |
SIMD.%type%.mul() |
Not available. Translate now. |
SIMD.%type%.neg() |
Not available. Translate now. |
SIMD.%type%.not() |
Not available. Translate now. |
SIMD.%type%.notEqual() |
Not available. Translate now. |
SIMD.%type%.or() |
Not available. Translate now. |
SIMD.%type%.prototype.toSource() |
Not available. Translate now. |
SIMD.%type%.prototype.toString() |
Not available. Translate now. |
SIMD.%type%.prototype.valueOf() |
Not available. Translate now. |
SIMD.%type%.reciprocalApproximation() |
Not available. Translate now. |
SIMD.%type%.reciprocalSqrtApproximation() |
Not available. Translate now. |
SIMD.%type%.replaceLane() |
Not available. Translate now. |
SIMD.%type%.select() |
Not available. Translate now. |
SIMD.%type%.shiftLeftByScalar() |
Not available. Translate now. |
SIMD.%type%.shiftRightByScalar() |
Not available. Translate now. |
SIMD.%type%.shuffle() |
Not available. Translate now. |
SIMD.%type%.splat() |
Not available. Translate now. |
SIMD.%type%.sqrt() |
Not available. Translate now. |
SIMD.%type%.store() |
Not available. Translate now. |
SIMD.%type%.sub() |
Not available. Translate now. |
SIMD.%type%.subSaturate() |
Not available. Translate now. |
SIMD.%type%.swizzle() |
Not available. Translate now. |
SIMD.%type%.xor() |
Not available. Translate now. |
SIMD.Bool16x8 |
Not available. Translate now. |
SIMD.Bool32x4 |
Not available. Translate now. |
SIMD.Bool64x2 |
Not available. Translate now. |
SIMD.Bool8x16 |
Not available. Translate now. |
SIMD.Float32x4 |
Not available. Translate now. |
SIMD.Float64x2 |
Not available. Translate now. |
SIMD.Int16x8 |
Not available. Translate now. |
SIMD.Int32x4 |
Not available. Translate now. |
SIMD.Int8x16 |
Not available. Translate now. |
SIMD.Uint16x8 |
Not available. Translate now. |
SIMD.Uint32x4 |
Not available. Translate now. |
SIMD.Uint8x16 |
Not available. Translate now. |
Set |
Not available. Translate now. |
Set.prototype |
Not available. Translate now. |
Set.prototype.add() |
Not available. Translate now. |
Set.prototype.clear() |
Not available. Translate now. |
Set.prototype.delete() |
Not available. Translate now. |
Set.prototype.entries() |
Not available. Translate now. |
Set.prototype.forEach() |
Not available. Translate now. |
Set.prototype.has() |
Not available. Translate now. |
Set.prototype.size |
Not available. Translate now. |
Set.prototype.values() |
Not available. Translate now. |
Set.prototype[@@iterator]() |
Not available. Translate now. |
get Set[@@species] |
Not available. Translate now. |
SharedArrayBuffer |
Not available. Translate now. |
SharedArrayBuffer.prototype |
Not available. Translate now. |
SharedArrayBuffer.prototype.byteLength |
Not available. Translate now. |
StopIteration |
Not available. Translate now. |
String |
Yes, but not up to date (8 days older). Edit. |
String.fromCharCode() |
Not available. Translate now. |
String.fromCodePoint() |
Not available. Translate now. |
String.prototype |
Not available. Translate now. |
String.prototype.anchor() |
Not available. Translate now. |
String.prototype.big() |
Not available. Translate now. |
String.prototype.blink() |
Not available. Translate now. |
String.prototype.bold() |
Not available. Translate now. |
String.prototype.charAt() |
Not available. Translate now. |
String.prototype.charCodeAt() |
Not available. Translate now. |
String.prototype.codePointAt() |
Not available. Translate now. |
String.prototype.concat() |
Not available. Translate now. |
String.prototype.endsWith() |
Not available. Translate now. |
String.prototype.fixed() |
Not available. Translate now. |
String.prototype.fontcolor() |
Not available. Translate now. |
String.prototype.fontsize() |
Not available. Translate now. |
String.prototype.includes() |
Not available. Translate now. |
String.prototype.indexOf() |
Not available. Translate now. |
String.prototype.italics() |
Not available. Translate now. |
String.prototype.lastIndexOf() |
Not available. Translate now. |
String.prototype.link() |
Not available. Translate now. |
String.prototype.localeCompare() |
Not available. Translate now. |
String.prototype.match() |
Not available. Translate now. |
String.prototype.normalize() |
Not available. Translate now. |
String.prototype.padEnd() |
Not available. Translate now. |
String.prototype.padStart() |
Not available. Translate now. |
String.prototype.quote() |
Not available. Translate now. |
String.prototype.repeat() |
Not available. Translate now. |
String.prototype.replace() |
Yes, but not up to date (752 days older). Edit. |
String.prototype.search() |
Not available. Translate now. |
String.prototype.slice() |
Not available. Translate now. |
String.prototype.small() |
Not available. Translate now. |
String.prototype.split() |
Not available. Translate now. |
String.prototype.startsWith() |
Not available. Translate now. |
String.prototype.strike() |
Not available. Translate now. |
String.prototype.sub() |
Not available. Translate now. |
String.prototype.substr() |
Not available. Translate now. |
String.prototype.substring() |
Not available. Translate now. |
String.prototype.sup() |
Not available. Translate now. |
String.prototype.toLocaleLowerCase() |
Not available. Translate now. |
String.prototype.toLocaleUpperCase() |
Not available. Translate now. |
String.prototype.toLowerCase() |
Not available. Translate now. |
String.prototype.toSource() |
Not available. Translate now. |
String.prototype.toString() |
Not available. Translate now. |
String.prototype.toUpperCase() |
Not available. Translate now. |
String.prototype.trim() |
Not available. Translate now. |
String.prototype.trimLeft() |
Not available. Translate now. |
String.prototype.trimRight() |
Not available. Translate now. |
String.prototype.valueOf() |
Not available. Translate now. |
String.prototype[@@iterator]() |
Not available. Translate now. |
String.raw() |
Not available. Translate now. |
string.length |
Not available. Translate now. |
Symbol |
Not available. Translate now. |
Symbol.for() |
Not available. Translate now. |
Symbol.hasInstance |
Not available. Translate now. |
Symbol.isConcatSpreadable |
Not available. Translate now. |
Symbol.iterator |
Not available. Translate now. |
Symbol.keyFor() |
Not available. Translate now. |
Symbol.match |
Not available. Translate now. |
Symbol.prototype |
Not available. Translate now. |
Symbol.prototype.toSource() |
Not available. Translate now. |
Symbol.prototype.toString() |
Not available. Translate now. |
Symbol.prototype.valueOf() |
Not available. Translate now. |
Symbol.prototype[@@toPrimitive] |
Not available. Translate now. |
Symbol.replace |
Not available. Translate now. |
Symbol.search |
Not available. Translate now. |
Symbol.species |
Not available. Translate now. |
Symbol.split |
Not available. Translate now. |
Symbol.toPrimitive |
Not available. Translate now. |
Symbol.unscopables |
Not available. Translate now. |
SyntaxError |
Not available. Translate now. |
SyntaxError.prototype |
Not available. Translate now. |
TypeError |
Not available. Translate now. |
TypeError.prototype |
Not available. Translate now. |
TypedArray |
Yes, but translation in progress. Edit. |
TypedArray.BYTES_PER_ELEMENT |
Not available. Translate now. |
TypedArray.from() |
Not available. Translate now. |
TypedArray.name |
Not available. Translate now. |
TypedArray.of() |
Not available. Translate now. |
TypedArray.prototype |
Not available. Translate now. |
TypedArray.prototype.buffer |
Not available. Translate now. |
TypedArray.prototype.byteLength |
Not available. Translate now. |
TypedArray.prototype.byteOffset |
Not available. Translate now. |
TypedArray.prototype.copyWithin() |
Not available. Translate now. |
TypedArray.prototype.entries() |
Not available. Translate now. |
TypedArray.prototype.every() |
Not available. Translate now. |
TypedArray.prototype.fill() |
Not available. Translate now. |
TypedArray.prototype.filter() |
Not available. Translate now. |
TypedArray.prototype.find() |
Not available. Translate now. |
TypedArray.prototype.findIndex() |
Not available. Translate now. |
TypedArray.prototype.forEach() |
Not available. Translate now. |
TypedArray.prototype.includes() |
Not available. Translate now. |
TypedArray.prototype.indexOf() |
Not available. Translate now. |
TypedArray.prototype.join() |
Not available. Translate now. |
TypedArray.prototype.keys() |
Not available. Translate now. |
TypedArray.prototype.lastIndexOf() |
Not available. Translate now. |
TypedArray.prototype.length |
Not available. Translate now. |
TypedArray.prototype.map() |
Not available. Translate now. |
TypedArray.prototype.move() |
Not available. Translate now. |
TypedArray.prototype.reduce() |
Not available. Translate now. |
TypedArray.prototype.reduceRight() |
Not available. Translate now. |
TypedArray.prototype.reverse() |
Not available. Translate now. |
TypedArray.prototype.set() |
Not available. Translate now. |
TypedArray.prototype.slice() |
Not available. Translate now. |
TypedArray.prototype.some() |
Not available. Translate now. |
TypedArray.prototype.sort() |
Not available. Translate now. |
TypedArray.prototype.subarray() |
Not available. Translate now. |
TypedArray.prototype.values() |
Not available. Translate now. |
TypedArray.prototype[@@iterator]() |
Not available. Translate now. |
get TypedArray[@@species] |
Not available. Translate now. |
URIError |
Not available. Translate now. |
URIError.prototype |
Not available. Translate now. |
Uint16Array |
Not available. Translate now. |
Uint32Array |
Not available. Translate now. |
Uint8Array |
Not available. Translate now. |
Uint8ClampedArray |
Not available. Translate now. |
WeakMap |
Not available. Translate now. |
WeakMap.prototype |
Not available. Translate now. |
WeakMap.prototype.clear() |
Not available. Translate now. |
WeakMap.prototype.delete() |
Not available. Translate now. |
WeakMap.prototype.get() |
Not available. Translate now. |
WeakMap.prototype.has() |
Not available. Translate now. |
WeakMap.prototype.set() |
Not available. Translate now. |
WeakSet |
Not available. Translate now. |
WeakSet.prototype |
Not available. Translate now. |
WeakSet.prototype.add() |
Not available. Translate now. |
WeakSet.prototype.clear() |
Not available. Translate now. |
WeakSet.prototype.delete() |
Not available. Translate now. |
WeakSet.prototype.has() |
Not available. Translate now. |
decodeURI() |
Not available. Translate now. |
decodeURIComponent() |
Not available. Translate now. |
encodeURI() |
Not available. Translate now. |
encodeURIComponent() |
Not available. Translate now. |
escape() |
Not available. Translate now. |
eval() |
Not available. Translate now. |
isFinite() |
Not available. Translate now. |
isNaN() |
Not available. Translate now. |
null |
Yes, but translation in progress. Edit. |
parseFloat() |
Not available. Translate now. |
parseInt() |
Yes, but editorial review needed. Edit. |
undefined |
Yes, but translation in progress. Edit. |
unescape() |
Not available. Translate now. |
uneval() |
Not available. Translate now. |
Statements and declarations |
Yes, and up to date. |
Legacy generator function |
Not available. Translate now. |
block |
Yes, and up to date. |
break |
Yes, and up to date. |
class |
Not available. Translate now. |
const |
Not available. Translate now. |
continue |
Not available. Translate now. |
debugger |
Not available. Translate now. |
default |
Not available. Translate now. |
do...while |
Not available. Translate now. |
empty |
Not available. Translate now. |
export |
Not available. Translate now. |
for |
Not available. Translate now. |
for each...in |
Not available. Translate now. |
for...in |
Yes, and up to date. |
for...of |
Not available. Translate now. |
function |
Not available. Translate now. |
function* |
Yes, but translation in progress. Edit. |
if...else |
Not available. Translate now. |
import |
Not available. Translate now. |
label |
Not available. Translate now. |
let |
Yes, but not up to date (33 days older). Edit. |
return |
Not available. Translate now. |
switch |
Not available. Translate now. |
throw |
Not available. Translate now. |
try...catch |
Not available. Translate now. |
var |
Yes, but not up to date (72 days older). Edit. |
while |
Not available. Translate now. |
with |
Not available. Translate now. |
Strict mode |
Not available. Translate now. |
Transitioning to strict mode |
Not available. Translate now. |
Template literals |
Not available. Translate now. |
JavaScript shells |
Not available. Translate now. |
JavaScript technologies overview |
Yes, and up to date. |
JavaScript typed arrays |
Yes, and up to date. |
Memory Management |
Not available. Translate now. |
New in JavaScript |
Yes, and up to date. |
ECMAScript 5 support in Mozilla |
Not available. Translate now. |
ECMAScript 6 support in Mozilla |
Not available. Translate now. |
ECMAScript Next support in Mozilla |
Not available. Translate now. |
Firefox JavaScript changelog |
Not available. Translate now. |
New in JavaScript 1.1 |
Yes, but translation in progress. Edit. |
New in JavaScript 1.2 |
Yes, but translation in progress. Edit. |
New in JavaScript 1.3 |
Yes, but translation in progress. Edit. |
New in JavaScript 1.4 |
Yes, but translation in progress. Edit. |
New in JavaScript 1.5 |
Yes, but translation in progress. Edit. |
New in JavaScript 1.6 |
Yes, and up to date. |
New in JavaScript 1.7 |
Yes, and up to date. |
New in JavaScript 1.8 |
Yes, and up to date. |
New in JavaScript 1.8.1 |
Yes, and up to date. |
New in JavaScript 1.8.5 |
Yes, but translation in progress. Edit. |
SIMD types |
Not available. Translate now. |
The performance hazards of [[Prototype]] mutation |
Not available. Translate now. |