JAVASCRIPT

javascript get random integer in given range

const randomInteger = (min, max) => Math.floor(Math.random() * (max - min + 1)) + min;

Range of numbers in javascript

function range(start, end) {
    if(start === end) return [start];
    return [start, ...range(start + 1, end)];
}

range number in js

[...Array(5).keys()]	// [0, 1, 2, 3, 4]

How to get a range numbers from given numbers in javascript

function scale (number, inMin, inMax, outMin, outMax) {
    return (number - inMin) * (outMax - outMin) / (inMax - inMin) + outMin;
}

js number in range

if (x >= 0.001 && x <= 0.009) {
  // something
}

js number in range

function between(x, min, max) {
  return x >= min && x <= max;
}
// ...
if (between(x, 0.001, 0.009)) {
  // something
}