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
byteOffset
is 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Typed Array Specification | Obsolete | Superseded by ECMAScript 2015. |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'DataView.prototype.getUint8' in that specification. |
Standard | Initial definition in an ECMA standard. |
ECMAScript Latest Draft (ECMA-262) The definition of 'DataView.prototype.getUint8' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 9 | 12 | 15 | 10 | 12.1 | 5.1 |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | 4 | Yes | Yes | 15 | 10 | 12 | 4.2 |