定义颗粒度函数

// 定义颗粒度函数   当颗粒度参数总个数小于调用函数的参数个数就 生成函数 直到总参数个数相等调用原函数
function currying(callback, arr = []){
    let argsNumber = callback.length
    return (...args)=>{
        let newArr = [...arr, ...args]
        if(newArr.length < argsNumber){
            return currying(callback, newArr)
        }else{
            return callback(...newArr)
        }
    }
}

function sum(a,b,c,d,e){
    return a+b+c+d+e
}

let res = currying(sum)(1,2)(3,4)(5)
console.log(res)


function isTpye(type,value){
    return Object.prototype.toString.call(value) === `[object ${type}]`
}

let isArr = currying(isTpye)("Array")

let isArr0 = isArr([1,2])
let isArr1 = isArr('sss')
console.log(isArr0)
console.log(isArr1)