DataView.prototype.getUint8()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The getUint8()
method of DataView
instances reads 1 byte at the specified byte offset of this DataView
and interprets it as an 8-bit unsigned integer.
Try it
Syntax
js
getUint8(byteOffset)
Parameters
byteOffset
-
The offset, in bytes, from the start of the view to read the data from.
Return value
An integer from 0 to 255, inclusive.
Exceptions
RangeError
-
Thrown if the
byteOffset
is set such that it would read beyond the end of the view.
Examples
Using getUint8()
js
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getUint8(1)); // 1
Specifications
Specification |
---|
ECMAScript Language Specification # sec-dataview.prototype.getuint8 |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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getUint8 |
Legend
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- Full support
- Full support
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.