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.
TypedArray.prototype.join()
Try it
Syntax
join() 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.
Examples
Using join()
var uint8 = new Uint8Array([1,2,3]); uint8.join(); // '1,2,3' uint8.join(' / '); // '1 / 2 / 3' uint8.join(''); // '123'
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.
Specifications
Browser compatibility
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | Deno | Node.js | |
join |
45
|
14
|
37
|
No
|
32
|
9.1
|
45
|
45
|
37
|
32
|
9.3
|
5.0
|
1.0
|
4.0.0
|
See also
© 2005–2022 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/join