JavaScript (ES2026) reference · Array Methods

JavaScript Array findLast() Method

Return the last element that passes a test function, searching from the end, or undefined if none does.

JavaScript (ES2026) Since ES2023

Syntax

array.findLast(callbackFn, thisArg)

Parameter	Description
`callbackFn`	Called for each element with `(element, index, array)`.

The last matching element, or undefined.

Last matchTry it yourself

const temps = [12, 25, 18, 30, 15];
console.log(temps.findLast((t) => t > 20));

Output

Most recent errorTry it yourself

const log = [{ level: "info" }, { level: "error", msg: "disk" }, { level: "info" }];
console.log(log.findLast((e) => e.level === "error"));

Output

{ level: 'error', msg: 'disk' }

Version	Change
JavaScript ES2023	Added

array.find() · Return the first element that passes a test function, or undefined if none does.
array.findLastIndex() · Return the index of the last element that passes a test function, or -1 if none does.
JavaScript Arrays · tutorial
JavaScript Array Methods · tutorial