javascript numeber between code example

Example 1: javascript random number between

Math.floor(Math.random() * 6) + 1

Example 2: javascript number between values

Number.prototype.between = function(a, b) {
  var min = Math.min.apply(Math, [a, b]),
    max = Math.max.apply(Math, [a, b]);
  return this > min && this < max;
};

var windowSize = 550;

console.log(windowSize.between(500, 600));