Web Reference: Description map() creates a new array from calling a function for every array element. map() does not execute the function for empty elements. map() does not change the original array. Jul 20, 2025 · The map () method of Array instances creates a new array populated with the results of calling a provided function on every element in the calling array. Jul 11, 2025 · The map () method is an ES5 feature that creates a new array by applying a function to each element of the original array. It skips empty elements and does not modify the original array.
YouTube Excerpt: 00:00:00 introduciton 00:00:16 example 1 00:02:13 example 2 00:03:58 example 3 // .
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