JavaScript Array keys() Method
Example
Create an Array Iterator object, with keys for each item in the fruit array:
var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.keys();
Try it Yourself »
Definition and Usage
The keys() method returns an Array Iterator object with the keys of an array.
Browser Support
The numbers in the table specify the first browser version that fully supports the method.
| Method | |||||
|---|---|---|---|---|---|
| keys() | 38.0 | 12.0 | 28.0 | 8 | 25.0 |
Syntax
array.keys()
Parameter Values
No parameters.
Technical Details
| Return Value: | An Array Iterator object |
|---|---|
| JavaScript Version: | ECMAScript 6 |
❮ JavaScript Array Reference
