尝试登录时出错

Question

I have a problem. 我有个问题。 When I want to log in, I get "ERROR" every time, although I enter good login details. 我想登录时，尽管输入了良好的登录详细信息，但每次都会收到“错误”。

I am completely beginner in JavaScript and HTML, so please bear with me :-) 我完全是JavaScript和HTML的初学者，所以请忍受:-)

There is code: 有代码：

 function login() { var login = document.getElementById("login"); var password = document.getElementById("haslo"); var lGOOD = "adi282123"; var pGOOD = "qaz123qaz123"; var status; if (login === lGOOD && password === pGOOD) { greeting = "OK"; } else { greeting = "ERROR"; } document.getElementById("demo").innerHTML = greeting; }

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <!DOCTYPE html> <html> <body> <p>Zaloguj się</p> <br id=login><input type="text" name="login"><br> <br id=haslo><input type="text" name="password"> <button onclick="login()">Zaloguj się !!!</button> <p id="demo"></p> <script> </script> </body> </html>

Answer 1

There are two issues in your code: 您的代码中有两个问题：

You have set id to the wrong elements. 您已将ID设置为错误的元素。 You have to set id 's to input elements. 您必须将id设置为input元素。
You have to take the value from the input element 您必须从输入元素中获取value

 function login() { var login = document.getElementById("login").value; var password = document.getElementById("haslo").value; var lGOOD = "adi282123"; var pGOOD = "qaz123qaz123"; var status; if (login === lGOOD && password === pGOOD) { greeting = "OK"; } else { greeting = "ERROR"; } document.getElementById("demo").innerHTML = greeting; }

 <p>Zaloguj się</p> <br><input id="login" type="text" name="login"><br> <br><input id="haslo" type="text" name="password"> <button onclick="login()">Zaloguj się !!!</button> <p id="demo"></p>

尝试登录时出错

问题描述

1 个解决方案

解决方案1
2 已采纳 2018-06-04 14:50:36

尝试登录时出错

问题描述

1 个解决方案

解决方案1 2 已采纳 2018-06-04 14:50:36

解决方案1
2 已采纳 2018-06-04 14:50:36