The join()
method joins all elements of an array into a string. This method has the same algorithm as Array.prototype.join()
. TypedArray is one of the typed array types here.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
Syntax
typedarray.join([separator = ',']
);
Parameters
separator
- Optional. Specifies a string to separate each element. The separator is converted to a string if necessary. If omitted, the typed array elements are separated with a comma (",").
Return value
A string with all array elements joined.
Polyfill
Since there is no global object with the name TypedArray, polyfilling must be done on an "as needed" basis.
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.join if (!Uint8Array.prototype.join) { Object.defineProperty(Uint8Array.prototype, 'join', { value: Array.prototype.join }); }
If you need to support truly obsolete JavaScript engines that don't support Object.defineProperty
, it's best not to polyfill Array.prototype
methods at all, as you can't make them non-enumerable.
Examples
Using join
var uint8 = new Uint8Array([1,2,3]); uint8.join(); // '1,2,3' uint8.join(' / '); // '1 / 2 / 3' uint8.join(''); // '123'
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'TypedArray.prototype.join' in that specification. |
Browser compatibility
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.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
join | Chrome Full support 45 | Edge Full support 14 | Firefox Full support 37 | IE No support No | Opera Full support 32 | Safari No support No | WebView Android Full support 45 | Chrome Android Full support 45 | Firefox Android Full support 37 | Opera Android Full support 32 | Safari iOS No support No | Samsung Internet Android Full support 5.0 | nodejs Full support 4.0.0 |
Legend
- Full support
- Full support
- No support
- No support