Nodejs Array Random random()

Method Source Code

Array.prototype.random = function() {
    return this[~~(this.length * Math.random())];
};
function rand(n) {
    return ~~(Math.random() * n);
}

Related

1. rand()

   Array.prototype.rand = function() {
     return this[Math.floor(Math.random() * this.length)];
   };
   

2. randEl()

   Array.prototype.randEl = function () {
     return this[Math.floor(Math.random() * this.length)]
   };
   

3. randFromArr()

   Array.prototype.randFromArr = function() {
     var a = this[Math.floor(Math.random() * this.length)]
     return a
   };
   

4. random()

   Array.prototype.random = function() {
     return this[Math.floor( Math.random() * this.length )]
   

5. random()

   Array.prototype.random = function() {
     return this[Math.floor(Math.random() * this.length)];
   };
   

6. random()

   Math.randomInt = function (min, max) {
       return Math.floor(Math.random() * (max - min +1)) + min
   };
   Array.prototype.random = function () {
      return this[Math.randomInt(0, this.length-1)];
   

7. random()

   Array.prototype.random = function() {
     if (!this.length) return;
     return this[Math.floor(Math.random() * this.length)];
   };
   

8. random()

   Array.prototype.random = function () {
     return this[Math.floor((Math.random()*this.length))];
   };
   

9. random()

   Array.prototype.random = function() {
       if (Object.prototype.toString.call(this) !== '[object Array]') {
           throw new TypeError("`this` must be Array, not " + typeof this);
       return this[Math.floor(Math.random() * this.length)];
   };