柯理化与反柯理化

<script>

function sum(a,b,c,d,e){

return a+b+c+d+e

}

const currying = (fn,arg = [])=>(...args)=>(

fn.length === args.concat(arg).length?fn(...args.concat(arg))

:currying(fn,[...args,...arg])

)

const fn = currying(sum)

console.log(fn(1,2)(3)(4)(5))

const fn1 = fn(1)

const fn2 = fn1(2)

console.log(fn2(3,4)(5))

</script>

 

 

<script>

Function.prototype.uncurring = function(){

let self = this

return function (){

let obj = Array.prototype.shift.call(arguments)

return self.apply(obj,arguments)

}

}

let push = Array.prototype.push.uncurring()

let cu = {}

push(cu,"sex","shuai")

console.log(cu)

</script>