repeat a function n number of times.

repeat.js

function repeat(n = 1) {
  let i = 0;
  return fn => {
    while(n--) {
      i++;
      fn(i)
    }
  }
}

// example usage:
repeat(10)(i => {
  console.log('floop boop', i)
})

repeat is a higher order function (it returns a function). The function returned by calling repeat(10) accepts a function as a parameter. That function will get called 10 times, each time it's called it passes the iteration number to the function as a parameter... in case you wanted it.

The function you provide will get called n times but it's called pretty much simultaneously. So like it doesn't wait for the function to complete before calling it again... if that makes sense...

Thanks for this. I think this is on track, is there a way (is it even possible) to get rid of the anon function and instead just have curly braces as a direct function? leaving the i out of the mix entirely (at least what would be exposed to the end user of the function!?

so instead of

repeat(10)(i => {
  console.log('floop boop', i)
})

we'd have something like

let i = 0;
repeat(10){
   i++
   console.log('floop boop', i)
}