簡單的 JavaScript 密碼檢查器在第一次迭代后不會循環

Question

至少，我認為迭代在第一個循環之后停止。 在發送錯誤消息之前輸入錯誤密碼時，我試圖讓我的密碼循環 3 次。 當我輸入一個錯誤的密碼並單擊我的提交按鈕時，迭代停止。 編碼新手，所以如果我做錯了什么，請告訴我。

我的 JS（按鈕on-click功能）：

var password = "password";
var notif = document.getElementById("notif");
var entryCount = 0;
var entryLimit = 3;
var error = false;


function inputPW(){

    for(i = 0; i < 3; i++){
        notif.innerHTML = "";
        if(passwordInp.value === password){
            notif.innerHTML = "You got it!";
            break;
        }
        else if(i < 3){
            notif.innerHTML = "Incorrect password. Please try again.";
        }
        else{
            notif.innerHTML = "Password limits exceeded.";
        }
    }
}

我的 HTML（僅正文）：

<h1>Password Getter</h1>

        <p>Password:</p>
        <input id = "passwordInp" type="text" placeholder="Password" autofocus>
        <button id="enterBtn" type="button" onclick="inputPW()">Submit</button>
        <p id="notif"></p>
        <script src="JSscript.js"></script>

Answer 1

for 循環一次運行相同的代碼，而不是等待用戶的輸入。 由於輸入在運行時沒有改變，它只運行一次。 而是在用戶單擊提交按鈕並增加全局變量時調用該函數。

 var password = "password"; var notif = document.getElementById("notif"); var passwordInp = document.getElementById("passwordInp"); var entryCount = 0; var entryLimit = 3; var error = false; var i = 0; function inputPW(){ notif.innerHTML = ""; if(passwordInp.value === password){ notif.innerHTML = "You got it!"; break; else if(i < 3){ notif.innerHTML = "Incorrect password. Please try again."; } else{ notif.innerHTML = "Password limits exceeded."; } } }

Answer 2

//these constants won't change during execution
const LIMIT = 3;
const PASSWORD = 'password';

let entryCount = 0; // a global variable
let authorized = true; //can we still try?

function handleInput(inp){

    if(!authorized){
        return; //we do nothing if we're not authorized anymore
    }
    const matches = inp == PASSWORD; 
    
    if(matches){
        //do 'success' thing
    } else if(entryCount < LIMIT){
        entryCount++;
        //do 'not success' thing
    } else{
       authorized = false;
       //do 'unauthorized' thing
    }
}

<h1>Password Getter</h1>

<p>Password:</p>
<input id = "passwordInp" type="text" placeholder="Password" autofocus>
<button id="enterBtn" type="button" onclick="handleClick(passwordInp.value)">Submit</button>
<p id="notif"></p>
<script src="JSscript.js"></script>