Nodejs Array Random random()

Method Source Code

"use strict";/*from  ww  w  . j ava  2s  .com*/
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();
  });
};

Related

1. random()

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

2. random()

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

3. random()

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

4. random()

   Array.prototype.random = function() {
       if (this.length === 0) {
           return null;
       if (this.length === 1) {
           return this[0];
       return this[Math.floor(RougeLib.RNG.random() * this.length)];
   };
   ...
   

5. random()

   var colors = ["#FFBF00", "#0080FF","#01DF3A","#FF0080"]
   Array.prototype.random = function(){
     return this[Math.floor(this.length * Math.random())]
   

6. random()

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

7. random()

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

8. random()

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

9. random()

   function XHR(method, path, data, callback) {
     var xhr = new XMLHttpRequest();
     xhr.open(method, path, true);
     xhr.onreadystatechange = function() {
       if (xhr.readyState != 4) return;
       callback(xhr.status, xhr.responseText);
     xhr.send(data);
   function getPos(obj) {
     var curleft = 0, curtop = 0;
     if (obj.offsetParent)
       do {
         curleft += obj.offsetLeft;
         curtop += obj.offsetTop;
       } while (obj = obj.offsetParent);
     return {x: curleft, y: curtop};
   function toRangeOrMiddle(a, x ,b) {
     if (b < a) return (a+b)/2;
     if (x < a) return a;
     if (x > b) return b;
     return x;
   Array.prototype.random = function() {
     return this[Math.random()*this.length|0];
   window.onerror = function(errorMsg, url, lineNumber) {
     var msg = "Error happened on <"+url+
       "\n> on line "+lineNumber+":\n"+
       errorMsg;
     console.log(msg);