.keys()
Term side of the Card
Topic: Array
Unit title: .keys()
Categories: Method
Explanation side of the Card
Explanation: The method that returns a new `Iterator` object containing the indexes (keys) of an array. This allows looping over the positions of the elements in the array.
Browser compatibility:
- The chrome browser supports this feature starting from version 38
- The edge browser supports this feature starting from version 12
- The firefox browser supports this feature starting from version 28
- The safari browser supports this feature starting from version 8
Availability: