Files
lodash/invoke.js
2017-01-12 10:56:23 -08:00

31 lines
896 B
JavaScript

import apply from './apply.js';
import castPath from './castPath.js';
import last from '../last.js';
import parent from './parent.js';
import toKey from './toKey.js';
/**
* Invokes the method at `path` of `object`.
*
* @since 4.0.0
* @category Object
* @param {Object} object The object to query.
* @param {Array|string} path The path of the method to invoke.
* @param {Array} [args] The arguments to invoke the method with.
* @returns {*} Returns the result of the invoked method.
* @example
*
* const object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
*
* invoke(object, 'a[0].b.c.slice', [1, 3]);
* // => [2, 3]
*/
function invoke(object, path, args) {
path = castPath(path, object);
object = parent(object, path);
const func = object == null ? object : object[toKey(last(path))];
return func == null ? undefined : apply(func, object, args);
}
export default invoke;