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
Specification |
---|
ECMAScript Language Specification # sec-%typedarray%.prototype.join |
Browser compatibility
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