33 lines
812 B
Plaintext
33 lines
812 B
Plaintext
|
|
||
|
|
{{alias}}( value )
|
||
|
|
Returns an array of an object's own enumerable property names.
|
||
|
|
|
||
|
|
Name order is not guaranteed, as object key enumeration is not specified
|
||
|
|
according to the ECMAScript specification. In practice, however, most
|
||
|
|
engines use insertion order to sort an object's keys, thus allowing for
|
||
|
|
deterministic extraction.
|
||
|
|
|
||
|
|
If provided `null` or `undefined`, the function returns an empty array.
|
||
|
|
|
||
|
|
Parameters
|
||
|
|
----------
|
||
|
|
value: any
|
||
|
|
Input value.
|
||
|
|
|
||
|
|
Returns
|
||
|
|
-------
|
||
|
|
keys: Array
|
||
|
|
List of an object's own enumerable property names.
|
||
|
|
|
||
|
|
Examples
|
||
|
|
--------
|
||
|
|
> function Foo() { this.beep = 'boop'; return this; };
|
||
|
|
> Foo.prototype.foo = 'bar';
|
||
|
|
> var obj = new Foo();
|
||
|
|
> var keys = {{alias}}( obj )
|
||
|
|
[ 'beep' ]
|
||
|
|
|
||
|
|
See Also
|
||
|
|
--------
|
||
|
|
|