js match value in range of numbers code example

Example 1: javascript print numbers in the given range

const range = (min, max) => [...Array(max - min + 1).keys()].map(i => i + min);
//or
const range = (min, max) => Array.from({ length: max - min + 1 }, (_, i) => min + i);

range(5, 10);   // [5, 6, 7, 8, 9, 10]

Example 2: sum all numbers in a range javascript

ar sum = 0;
  for (var i = Math.min(...arr); i <= Math.max(...arr); i++) {
    sum += i;
  }