Here you can find the source of sample(n)
Array.prototype.sample = function(n) { const result = this.slice();/*from w w w . j a v a2 s.com*/ const count = Math.min(n, result.length); for (let i = 0 ; i < count ; i++) { const x = Math.floor(Math.random() * result.length); const temp = result[i]; result[i] = result[x]; result[x] = temp; } return result.slice(0, count); }
Array.prototype.sample = function() { var rand_position = parseInt(Math.random() * this.length); return this[rand_position]; };
Array.prototype.sample = function() { return this[Math.floor(Math.random() * this.length)]; }; function Duck(color){ this.type = color; this.quack = function() { console.log(["Quacksicles!","Quacktacular!","That's so QUACK!"].sample()); }; var redDuck = new Duck("red"); var yellowDuck = new Duck("yellow"); console.log("The " + redDuck.type + " duck says: "); redDuck.quack(); console.log("The " + yellowDuck.type + " duck says: "); yellowDuck.quack();
Array.prototype.sample = function() { function getRandomInt(min, max) { return Math.floor(Math.random() * (max - min)) + min; return this[getRandomInt(0, this.length)];
Array.prototype.sample = function(n) { const result = [...this]; const count = Math.min(n, result.length); for (let i = 0 ; i < count ; i++) { const x = Math.floor(Math.random() * result.length); [result[i], result[x]] = [result[x], result[i]]; return result.slice(0, count); const generate = () => Array(45).fill() .map((_, i) => i + 1) .sample(6) .sort((x, y) => x - y) .join(', '); console.log(generate());
"use strict"; Array.prototype.sample = function (n) { var randNum, dupe, result; if (arguments.length === 0) { result = this[Math.floor(Math.random()*this.length)]; } else if (parseInt(n) !== n) { throw TypeError("argument must be a number"); } else if (n <= 0) { throw RangeError("argument must greater than zero"); ...
Array.prototype.sample = function(n){ if (typeof n == "undefined") n = 1 results = [] for (var i = 0; i < n; i++){ results.push(this[Math.floor(Math.random()*this.length)]) return results