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.
DataView.prototype.setUint8()
Try it
Syntax
js
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
Exceptions
-
RangeError -
Thrown if the
byteOffsetis set such that it would store beyond the end of the view.
Examples
Using setUint8()
js
const buffer = new ArrayBuffer(10);
const dataview = new DataView(buffer);
dataview.setUint8(0, 3);
dataview.getUint8(0); // 3
Specifications
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 | |
See also
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint8