27 lines
710 B
JavaScript
27 lines
710 B
JavaScript
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//#region src/function/ary.ts
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/**
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* Creates a function that invokes func, with up to n arguments, ignoring any additional arguments.
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*
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* @template F - The type of the function.
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* @param {F} func - The function to cap arguments for.
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* @param {number} n - The arity cap.
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* @returns {(...args: any[]) => ReturnType<F>} Returns the new capped function.
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*
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* @example
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* function fn(a: number, b: number, c: number) {
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* return Array.from(arguments);
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* }
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*
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* ary(fn, 0)(1, 2, 3) // []
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* ary(fn, 1)(1, 2, 3) // [1]
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* ary(fn, 2)(1, 2, 3) // [1, 2]
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* ary(fn, 3)(1, 2, 3) // [1, 2, 3]
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*/
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function ary(func, n) {
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return function(...args) {
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return func.apply(this, args.slice(0, n));
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};
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}
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//#endregion
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export { ary };
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