simple achievement of javascript for statement

javascript-for-statement

function forFunc(curr, compare, changer, actions) {
  if (compare(curr)) {
    actions(curr);
    return forFunc(changer(curr), compare, changer, actions);
  }
}

function iterateArr(arr, actions) {
  forFunc(0, i => i < arr.length, i => i+1, i => actions(arr[i], i));
}

function iterateArrReverse(arr, actions) {
  forFunc(arr.length - 1, i => i >= 0, i => i-1, i => actions(arr[i], i));
}

// use demo
forFunc(0, i => i < arr.length, i => i+1, i => console.log(i, arr[i])); // 0 1, 1 2, ...
iterateArr([1,2,3,4,5], (i, n) => console.log(i, n)); // 0 1, 1 2, ...
iterateArrReverse([1,2,3,4,5], (i, n) => console.log(i, n)); // 4 5, 3 4, ...