前言
本文主要給大家介紹了關于利用javascript隨機生成一定位數密碼的相關內容，分享出來供大家參考學習，下面話不多少，來一起看看詳細的介紹吧。
需求
隨機生成一定位數的密碼，有最小個數和最大個數，必須包含數字、大小寫字母，和特殊字符比如（- _ #）；
代碼
function createPassword(min,max) { //可以生成隨機密碼的相關數組 var num = ["0","1","2","3","4","5","6","7","8","9"]; var english = ["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"]; var ENGLISH = ["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"]; var special = ["-","_","#"]; var config = num.concat(english).concat(ENGLISH).concat(special); //先放入一個必須存在的 var arr = []; arr.push(getOne(num)); arr.push(getOne(english)); arr.push(getOne(ENGLISH)); arr.push(getOne(special)); //獲取需要生成的長度 var len = min + Math.floor(Math.random()*(max-min+1)); for(var i=4; i<len; i++){ //從數組里面抽出一個 arr.push(config[Math.floor(Math.random()*config.length)]); } //亂序 var newArr = []; for(var j=0; j<len; j++){ newArr.push(arr.splice(Math.random()*arr.length,1)[0]); } //隨機從數組中抽出一個數值 function getOne(arr) { return arr[Math.floor(Math.random()*arr.length)]; } return newArr.join(""); }使用
傳入一個生成的密碼的最小位數，和最大位數，即可返回一個隨機密碼
console.log(createPassword(8,15));
總結
以上就是這篇文章的全部內容了，希望本文的內容對大家的學習或者工作能帶來一定的幫助，如果有疑問大家可以留言交流，謝謝大家對武林網的支持。
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