js函数式编程curry与compose实现

//自行实现以下curry函数和compose

//curry

function curry(fn) {
    return function aa (...arg) {
        if (arg.length >= fn.length) {
            return fn(...arg);
        } else {
            return aa.bind(null, ...arg);
        }
    }
}

const curry = (fn) => aa = (...arg) => arg.length >= fn.length ? fn(...arg): aa.bind(null, ...arg);
// compose

function compose(...arr) {
    return function (...arr2) {
        (function aa(n) {
            if (n < arr.length -1) {
                return arr[n](aa(++n))
            } else {
                return arr[n](...arr2);
            }
        })(0)
    }
}

const compose = (...arr) => (...arr2) => ((aa = (n) => n < arr.length - 1 ? arr[n](aa(++n)): arr[n](...arr2))(0));

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js函数式编程curry与compose实现

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