44 lines
1.4 KiB
JavaScript
44 lines
1.4 KiB
JavaScript
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//#region src/function/curryRight.ts
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/**
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* Curries a function, allowing it to be called with a single argument at a time and returning a new function that takes the next argument.
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* This process continues until all arguments have been provided, at which point the original function is called with all accumulated arguments.
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*
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* Unlike `curry`, this function curries the function from right to left.
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*
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* @param {(...args: any[]) => any} func - The function to curry.
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* @returns {(...args: any[]) => any} A curried function.
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*
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* @example
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* function sum(a: number, b: number, c: number) {
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* return a + b + c;
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* }
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*
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* const curriedSum = curryRight(sum);
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*
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* // The parameter `c` should be given the value `10`.
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* const add10 = curriedSum(10);
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*
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* // The parameter `b` should be given the value `15`.
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* const add25 = add10(15);
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*
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* // The parameter `a` should be given the value `5`. The function 'sum' has received all its arguments and will now return a value.
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* const result = add25(5); // 30
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*/
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function curryRight(func) {
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if (func.length === 0 || func.length === 1) return func;
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return function(arg) {
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return makeCurryRight(func, func.length, [arg]);
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};
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}
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function makeCurryRight(origin, argsLength, args) {
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if (args.length === argsLength) return origin(...args);
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else {
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const next = function(arg) {
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return makeCurryRight(origin, argsLength, [arg, ...args]);
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};
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return next;
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}
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}
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//#endregion
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exports.curryRight = curryRight;
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