TypedArray.prototype.join()
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.
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
join |
45 |
14 |
37 |
No |
32 |
9.1 |
45 |
45 |
37 |
32 |
9.3 |
5.0 |
See also
- A polyfill of
TypedArray.prototype.join
is available incore-js
TypedArray
Array.prototype.join()
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/join