Question

I know I can simply write a while loop for this..

I’m just curious to know how to pass an argument like this:

   function i(a,z){

      for (a; a<2; z){

          //do something...

      }
   }

I tried

    i(0,a++);
    i(0,'a++');
    i(0,a=a+1);


    var z = "a= a+1";
    i(0,z);

and all didn’t work.

---

​[UPDATE]

I know I can change the function into

   function i(a,z){

      for (a; a<2; a=a+z){

          //do something...

      }
   }

then

  i(0,1);

but what I want to know here is how I can pass that a=a+z as an argument without changing my function…

Answer 1

I’m not sure if I understand correctly but I guess you would want something like this:

function i(a, z){
    for (a; a < 2; a = z(a)){
        //do something...
    }
}

Then you call it like this:

i(0, function(a) { 
     a++; 
     return a;
});

Note that it is very similar to what you have except that the last part of the for is a function.