JavaScript keys()Method
JavaScript Array ObjectExample
Create an array iterator object from the array fruit, which contains the keys of the array:
var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.keys();
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Definition and Usage
The keys() method is used to create an iterable object from an array that contains the keys of the array.
Returns true if the object is an array, otherwise returns false.
Browser Support
The numbers in the table indicate the first browser version that supports the method.
| Method | |||||
|---|---|---|---|---|---|
| keys() | 38.0 | 12.0 | 28.0 | 8 | 25.0 |
Syntax
array.keys()
Parameters
No parameters.
Technical Details
| Return Value: | An array iterable object. |
|---|---|
| JavaScript Version: | ECMAScript 6 |
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