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735 BJavaScriptView Raw
1/**
2 * A faster alternative to `Function#apply`, this function invokes `func`
3 * with the `this` binding of `thisArg` and the arguments of `args`.
4 *
5 * @private
6 * @param {Function} func The function to invoke.
7 * @param {*} thisArg The `this` binding of `func`.
8 * @param {Array} args The arguments to invoke `func` with.
9 * @returns {*} Returns the result of `func`.
10 */
11function apply(func, thisArg, args) {
12 var length = args.length;
13 switch (length) {
14 case 0: return func.call(thisArg);
15 case 1: return func.call(thisArg, args[0]);
16 case 2: return func.call(thisArg, args[0], args[1]);
17 case 3: return func.call(thisArg, args[0], args[1], args[2]);
18 }
19 return func.apply(thisArg, args);
20}
21
22export default apply;