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dropWhile javascript Code Snippet in 2024

arrayintermediate

Last Updated: 13 June 2024

Removes elements in an array until the passed function returns true. Returns the remaining elements in the array.

  • Loop through the array, using Array.prototype.slice() to drop the first element of the array until the value returned from func is true.
  • Return the remaining elements.
const dropWhile = (arr, func) => { while (arr.length > 0 && !func(arr[0])) arr = arr.slice(1); return arr; };
dropWhile([1, 2, 3, 4], n => n >= 3); // [3, 4]

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