Get a random number in JavaScript

random_arbitrary.js

  /**
     * Returns a random number between min (inclusive) and max (exclusive)
     */
     let getRandomArbitrary => (min, max, fixed) {
        fixed=fixed=10;
        return (Math.random() * (max - min) + min).toFixed(fixed);
    }

random_int.js

    /**
     * Returns a random integer between min (inclusive) and max (inclusive)
     * Using Math.round() will give you a non-uniform distribution!
     */
     let getRandomInt = (min, max) => {
        return Math.floor(Math.random() * (max - min + 1)) + min;
    }

random_two_pass.js

let getRandomTwoPass = (min,max,floor) => {
       var i = min, j = max, k = (max-min)+1, a = [], b = [], c, d, e, f, l = 0;
       for(; i <= j; i++){ a.push(i); }
       while(l < k){
           c = !floor?Math.floor( Math.random()*100 ):Math.random();
           d = !floor?Math.floor( Math.random()*100 ):Math.random();
           b.push(c); e = c + d;
           if((b.length != k) && (e < k)){  b.push(a[e]); }
           l = b.length;
       }
       return b;
     }

For Array shuffle see https://gist.github.com/loretoparisi/c09e131d0b731c64fff498b288eba78e