Web Reference: Description The keys() method returns an Iterator object with the keys of an array. The keys() method does not change the original array. Jul 20, 2025 · The keys() method of Array instances returns a new array iterator object that contains the keys for each index in the array. Jul 11, 2025 · The Javascript array.keys () method is used to return a new array iterator which contains the keys for each index in the given input array. Syntax: Parameters: This method does not accept any parameters. Return Values: It returns a new array iterator. The below example illustrates the Array keys () method in JavaScript:
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