Nodejs Array Random random()

Method Source Code

// Returns a random element in the Array

Array.prototype.random = function() {

    // Prototypes throw TypeErrors when the context or arguments are invalid

    if (Object.prototype.toString.call(this) !== '[object Array]') {
        throw new TypeError("`this` must be Array, not " + typeof this);
    }// www . ja va  2s .com

    return this[Math.floor(Math.random() * this.length)];
};

Related

1. random()

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

2. random()

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

3. 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)];
   

4. random()

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

5. random()

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

6. random()

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

7. random()

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

8. random()

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

9. random()

   Array.prototype.random = function(){
       return this[sb.math.rand(0,this.length)];
   };