TypedArray.prototype.length
The length
accessor property represents the length (in elements) of a typed array.
Try it
Description
The length
property is an accessor property whose set accessor function is undefined
, meaning that you can only read this property. The value is established when a TypedArray is constructed and cannot be changed. If the TypedArray is not specifying a byteOffset
or a length
, the length of the referenced ArrayBuffer
will be returned. TypedArray is one of the TypedArray objects.
Examples
Using the length
property
const buffer = new ArrayBuffer(8);
let uint8 = new Uint8Array(buffer);
uint8.length; // 8 (matches the length of the buffer)
uint8 = new Uint8Array(buffer, 1, 5);
uint8.length; // 5 (as specified when constructing the Uint8Array)
uint8 = new Uint8Array(buffer, 2);
uint8.length; // 6 (due to the offset of the constructed Uint8Array)
Specifications
Specification |
---|
ECMAScript Language Specification # sec-get-%typedarray%.prototype.length |
Browser compatibility
BCD tables only load in the browser