LendAndRegret/node_modules/es-toolkit/dist/compat/array/findIndex.d.mts
2026-05-02 17:27:43 +08:00

22 lines
1.2 KiB
TypeScript

import { ListIterateeCustom } from '../_internal/ListIterateeCustom.mjs';
/**
* Finds the index of the first item in an array that has a specific property, where the property name is provided as a PropertyKey.
*
* @template T
* @param {ArrayLike<T> | null | undefined} arr - The array to search through.
* @param {((item: T, index: number, arr: any) => unknown) | Partial<T> | [keyof T, unknown] | PropertyKey} doesMatch - The criteria to match against the items in the array. This can be a function, a partial object, a key-value pair, or a property name.
* @param {PropertyKey} propertyToCheck - The property name to check for in the items of the array.
* @param {number} [fromIndex=0] - The index to start the search from, defaults to 0.
* @returns {number} - The index of the first item that has the specified property, or `-1` if no match is found.
*
* @example
* // Using a property name
* const items = [{ id: 1, name: 'Alice' }, { id: 2, name: 'Bob' }];
* const result = findIndex(items, 'name');
* console.log(result); // 0
*/
declare function findIndex<T>(arr: ArrayLike<T> | null | undefined, doesMatch?: ListIterateeCustom<T, boolean>, fromIndex?: number): number;
export { findIndex };