4b96edf72f
* Treat `...` in jsdoc type as creating a synthetic rest parameter -- not as an array type * Change type parsing so `...T[]` parses as `...(T[])` and not `(...T)[]` * Replace the last parameter with ...args, and make access to it potentially undefined * Code review
27 lines
863 B
TypeScript
27 lines
863 B
TypeScript
// @allowJs: true
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// @out: apply.js
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// @module: amd
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// @filename: _apply.js
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/**
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* A faster alternative to `Function#apply`, this function invokes `func`
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* with the `this` binding of `thisArg` and the arguments of `args`.
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*
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* @private
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* @param {Function} func The function to invoke.
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* @param {*} thisArg The `this` binding of `func`.
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* @param {...*} args The arguments to invoke `func` with.
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* @returns {*} Returns the result of `func`.
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*/
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function apply(func, thisArg, ...args) {
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var length = args.length;
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switch (length) {
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case 0: return func.call(thisArg);
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case 1: return func.call(thisArg, args[0]);
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case 2: return func.call(thisArg, args[0], args[1]);
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case 3: return func.call(thisArg, args[0], args[1], args[2]);
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}
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return func.apply(thisArg, args);
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}
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export default apply; |