Javascript Array random()

/**/*from ww  w . java2  s  .  c  om*/
 *  Array#random() -> Object
 *  Returns a random item from the array instance;
**/
Array.prototype.random = function() {
  if (!this.length) return;
  return this[Math.floor(Math.random() * this.length)];
};

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

var arr = new Array(2,3,82,1,232,12,32);

console.log(arr.random());/*from   www.  j  a  v a2s  .com*/

// 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);
    }// w w  w  .  ja  v a  2 s.  com

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

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

Array.prototype.shuffle = function() {
  var m = this.length, i;
  while (m) {//from ww w.j a  v  a2  s  . co m
    i = (Math.random() * m--) >>> 0;
    [this[m], this[i]] = [this[i], this[m]]
  }
  return this;
};

const COLORS = [ 'grey', 'blue', 'green' ]

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

/**//  ww  w .ja v  a 2  s  .  c  om
 * Returns a randomly chosen element from the array
 */
Array.prototype.random = function() {
 return this[ Math.randomInt( 0, this.length - 1 ) ];
};

/**//from www  .  java  2  s. c  o  m
 * @returns {any} Randomly picked item, null when length=0
 */
Array.prototype.random = function() {
 if (!this.length) { return null; }
 return this[Math.floor(ROT.RNG.getUniform() * this.length)];
}

Array.prototype.random = function() {
 var index = Math.floor(Math.random() * this.length),
  found = this[index];//from  w  w  w.j  a  v a2  s  . c o  m
 this.splice(index, 1);
 return found;
};

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

// Legacy's stock 

Array.prototype.random = function() { 
    return this[Math.floor(Math.random() * this.length)];
}; /*w  ww. j  a  v  a  2  s  .  c  om*/

Array.prototype.shuffle = function() { 
    return this.sort(function() { 
        return Math.random() - 0.5; 
    });
};

Function.prototype.__extends = function(superClass) { 
    this.prototype = Object.create(superClass.prototype);
}; 

Object._entries = function(obj) {
    var entry = [];
    for (key in obj)
        entry[entry.length] = [key, obj[key]];
    
    return entry;
};

/**/*from   ww w.  ja  v  a2s.  co m*/
 * @returns {any} Randomly picked item, null when length=0
 */
Array.prototype.random = Array.prototype.random || function() {
 if (!this.length) { return null; }
 return this[Math.floor(ROT.RNG.getUniform() * this.length)];
}

Array.prototype.random = function() {
    if (this.length === 0) {
        return null;
    }/*from  w w w .  j a va  2 s . c o  m*/
    
    if (this.length === 1) {
        return this[0];
    }
    
    return this[Math.floor(RougeLib.RNG.random() * this.length)];
};

"use strict";//www.ja va 2s .  c  om
var cyphers, letters;

exports.options = "-r, --replace";

exports.description = "Return a the current sentence, where the 'x' are replaced by random number, and the 'y'.";

letters = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"];

cyphers = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];

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

exports.exec = function(given) {
  return given.replace(/[xy]/g, function(letter) {
    return (letter === "y" ? letters : cyphers).random();
  });
};

/* global Game */
Array.prototype.random = function() {
    if (this.length === 0) {
        return null;
    }/*from  ww w.  j a  v  a2s . co  m*/
    
    if (this.length == 1) {
        return this[0];
    }
    
    return this[Math.floor(Game.RNG.random() * this.length)];
};

Array.prototype.random = function() {
 return this[Math.floor((this.length-1)*Math.random())];
};