range based loop javascript code example

Example 1: javascript create range with a loop

function createRange(min, max) {
    var range = [];
    for (let i = min; i <= max; i++) {
        range.push(i);
    }
    return range;
}

createRange(1, 5)
// => [1, 2, 3, 4, 5]

Example 2: for in range javascript

function* range(start=0, end=null, step=1) {
  if (end == null) {
    end = start;
    start = 0;
  }

  for (let i=start; i < end; i+=step) {
    yield i;
  }
}