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DataView.prototype.setUint8()

The setUint8() method of DataView instances takes a number and stores it as an 8-bit unsigned integer in the byte at the specified byte offset of this DataView.

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Syntax

setUint8(byteOffset, value)

Parameters

byteOffset: The offset, in bytes, from the start of the view to store the data in.
value: The value to set. For how the value is encoded in bytes, see Value encoding and normalization.

Return value

undefined.

Exceptions

RangeError: Thrown if the byteOffset is set such that it would store beyond the end of the view.

Examples

Using setUint8()

const buffer = new ArrayBuffer(10);
const dataview = new DataView(buffer);
dataview.setUint8(0, 3);
dataview.getUint8(0); // 3

Specifications

Specification
ECMAScript Language Specification # sec-dataview.prototype.setuint8

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`setUint8`	9	12	15	12.1	5.1	18	15	12.1	5	1.0	4	1.0	0.10.0

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Syntax

Parameters

Return value

Exceptions

Examples

Using setUint8()

Specifications

Browser compatibility

See also