Array.prototype.findLast()
Returns the last element that satisfies the provided testing function, iterating from the end.
Syntax
arr.findLast(callback, thisArg)Parameters
| Name | Type | Required | Description |
|---|---|---|---|
callback | Function | Yes | Predicate called with (element, index, array). Return truthy to select the element. |
thisArg | any | No | Value to use as `this` when executing the callback. |
Returns
any — The last matching element, or undefined if none match.
Examples
const nums = [5, 12, 8, 130, 44];
console.log(nums.findLast(n => n > 10));
Output
44
console.log([1, 2, 3].findLast(n => n > 9));
Output
undefined
Notes
Iterates from the highest index to the lowest. Returns undefined when nothing
matches. Use `findLastIndex` to get the position. Does not mutate the array.
Browser & runtime support
| Environment | Since version |
|---|---|
| chrome | 97 |
| firefox | 104 |
| safari | 15.4 |
| edge | 97 |
| node | 18 |