36 lines
1.6 KiB
JavaScript
36 lines
1.6 KiB
JavaScript
const require_identity = require("../../function/identity.js");
|
|
const require_iteratee = require("../util/iteratee.js");
|
|
//#region src/compat/array/find.ts
|
|
/**
|
|
* Finds the first item in an object that has a specific property, where the property name is provided as a PropertyKey.
|
|
*
|
|
* @template T
|
|
* @param {ArrayLike<T> | Record<any, any> | null | undefined} source - The source array or object to search through.
|
|
* @param {((item: T, index: number, arr: any) => unknown) | Partial<T> | [keyof T, unknown] | PropertyKey} doesMatch - The criteria to match. It can be a function, a partial object, a key-value pair, or a property name.
|
|
* @param {number} [fromIndex=0] - The index to start the search from, defaults to 0.
|
|
* @returns {T | undefined} - The first property value that has the specified property, or `undefined` if no match is found.
|
|
*
|
|
* @example
|
|
* // Using a property name
|
|
* const obj = { a: { id: 1, name: 'Alice' }, b: { id: 2, name: 'Bob' } };
|
|
* const result = find(obj, 'name');
|
|
* console.log(result); // { id: 1, name: 'Alice' }
|
|
*/
|
|
function find(source, _doesMatch = require_identity.identity, fromIndex = 0) {
|
|
if (!source) return;
|
|
if (fromIndex < 0) fromIndex = Math.max(source.length + fromIndex, 0);
|
|
const doesMatch = require_iteratee.iteratee(_doesMatch);
|
|
if (!Array.isArray(source)) {
|
|
const keys = Object.keys(source);
|
|
for (let i = fromIndex; i < keys.length; i++) {
|
|
const key = keys[i];
|
|
const value = source[key];
|
|
if (doesMatch(value, key, source)) return value;
|
|
}
|
|
return;
|
|
}
|
|
return source.slice(fromIndex).find(doesMatch);
|
|
}
|
|
//#endregion
|
|
exports.find = find;
|