Baseline Widely available
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.
// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);
const view = new DataView(buffer);
view.setUint8(1, 255); // Max unsigned 8-bit integer
console.log(view.getUint8(1));
// Expected output: 255
Syntax Parameters
byteOffset
The offset, in bytes, from the start of the view to read the data from.
An integer from 0 to 255, inclusive.
ExceptionsRangeError
Thrown if the byteOffset
is set such that it would read beyond the end of the view.
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 Browser compatibility See also
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| Version:
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