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The Number.MIN_VALUE
property represents the smallest positive numeric value representable in JavaScript.
Property attributes of Number.MIN_VALUE |
|
---|---|
Writable | no |
Enumerable | no |
Configurable | no |
Description
The MIN_VALUE
property is the number closest to 0, not the most negative number, that JavaScript can represent.
MIN_VALUE
has a value of approximately 5e-324
. Values smaller than MIN_VALUE
("underflow values") are converted to 0.
Because MIN_VALUE
is a static property of Number
, you always use it as Number.MIN_VALUE
, rather than as a property of a Number
object you created.
Examples
Using MIN_VALUE
The following code divides two numeric values. If the result is greater than or equal to MIN_VALUE
, the func1
function is called; otherwise, the func2
function is called.
if (num1 / num2 >= Number.MIN_VALUE) { func1(); } else { func2(); }
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 1st Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.1. |
ECMAScript 5.1 (ECMA-262) The definition of 'Number.MIN_VALUE' in that specification. |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Number.MIN_VALUE' in that specification. |
Standard | |
ECMAScript 2017 Draft (ECMA-262) The definition of 'Number.MIN_VALUE' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |