js-fns
Version:
Modern JavaScript utility library focused on the build size
12 lines (11 loc) • 442 B
TypeScript
/**
* Returns the index of the last matching element in an array.
*
* @param array - The array to find element index in
* @param matcher - The function that returns true if element satisfies a condition
* @returns A last element index that satisfies the condition
*
* @category Array
* @public
*/
export default function findLastIndex<ElementType>(array: Array<ElementType>, matcher: (element: ElementType) => boolean): number | -1;