The getUint8() method gets an unsigned 8-bit integer (unsigned byte) at the specified byte offset from the start of the DataView.
Syntax
dataview.getUint8(byteOffset)
Parameters
- byteOffset
- The offset, in byte, from the start of the view where to read the data.
Return value
An unsigned 8-bit integer number.
Errors thrown
RangeError- Thrown if the
byteOffsetis set such as it would read beyond the end of the view.
Description
There is no alignment constraint; multi-byte values may be fetched from any offset.
Examples
Using the getUint8 method
var buffer = new ArrayBuffer(8); var dataview = new DataView(buffer); dataview.getUint8(1); // 0
Specifications
| Specification | Status | Comment |
|---|---|---|
| Typed Array Specification | Obsolete | Superseded by ECMAScript 6. |
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'DataView.prototype.getUint8' in that specification. |
Standard | Initial definition in an ECMA standard. |
| ECMAScript 2017 Draft (ECMA-262) The definition of 'DataView.prototype.getUint8' in that specification. |
Draft |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 9.0 | 15.0 (15.0) | 10 | 12.1 | 5.1 |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | 4.0 | (Yes) | 15.0 (15) | ? | 12.0 | 4.2 |