findLast javascript Code Snippet in 2024
arraybeginner
Last Updated: 20 April 2024
Finds the last element for which the provided function returns a truthy value.
- Use
Array.prototype.filter()to remove elements for whichfnreturns falsy values. - Use
Array.prototype.pop()to get the last element in the filtered array.
const findLast = (arr, fn) => arr.filter(fn).pop();findLast([1, 2, 3, 4], n => n % 2 === 1); // 3
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