Closure With Recursion

closure_with_recursion_good_fix.js

var incrementUntil = function(max) {
   var inc = function(num) { 
      if(num >= max) return num 
      return inc(num+1)
    }
    return (num) => inc(num)
}
	
incrementUntil(4)(1) //> 4
incrementUntil(8)(3) //> 8

var num = 1
incrementUntil(8)(num) //> 8
num //> 1 .... Good! Our function is pure!