仅当 2 个文本字段匹配时如何提交？

Question

我正在实现此代码： https://www.geeksforgeeks.org/password-matching-using-javascript/

我希望仅在两个密码匹配时才发生提交操作。 但是如果我将字段留空或密码不匹配，就会出现问题。 无论如何它都会执行操作提交，那么我如何强制它仅在两个输入匹配且不为空时才执行它？

这是代码：

<!DOCTYPE html>
<html>
    <head>
        <script>
        
            // Function to check Whether both passwords
            // is same or not.
            function checkPassword(form) {
                password1 = form.password1.value;
                password2 = form.password2.value;

                // If password not entered
                if (password1 == '')
                    alert ("Please enter Password");
                    
                // If confirm password not entered
                else if (password2 == '')
                    alert ("Please enter confirm password");
                    
                // If Not same return False.    
                else if (password1 != password2) {
                    alert ("\nPassword did not match: Please try again...")
                    return false;
                }

                // If same return True.
                else{
                    alert("Password Match: Welcome to GeeksforGeeks!")
                    return true;
                }
            }
        </script>
    </head>
    <body>
        <form onSubmit = "return checkPassword(this)" action="success.php" method="POST">
        <table border = 1 align = "center">
            <tr>
                <!-- Enter Password. -->
                <td>Password:</td>
                <td><input type = password name = password1></td>
            </tr>
            <tr>
                <!-- To Confirm Password. -->
                <td>Confirm Password:</td>
                <td><input type = password name = password2></td>
            </tr>
            <tr>
                <td colspan = 2 align = right>
                <input type = submit value = "Submit"></td>
            </tr>
        </table>
        </form>
    </body>
</html>

success.php了。php 就是这个

<?php
    echo("SUCCESS");
?>

Answer 1

如果其中一个密码为空，则需要返回 false

// If password not entered
if (password1 == '') {
    alert ("Please enter Password");
    return false;    
}

// If confirm password not entered
if (password2 == '') {
    alert ("Please enter confirm password");
    return false;
}

Answer 2

这是你想写的

if (password == '') {
    alert ("Please enter the Password");
    return false;    
     }
else (password == '') {
     alert ("Please enter confirm the password");
      return false;
 }

仅当 2 个文本字段匹配时如何提交？

问题描述

2 个解决方案

解决方案1
0 2022-08-21 17:11:31

解决方案2
0 已采纳 2022-08-21 17:27:37

仅当 2 个文本字段匹配时如何提交？

问题描述

2 个解决方案

解决方案1 0 2022-08-21 17:11:31

解决方案2 0 已采纳 2022-08-21 17:27:37

解决方案1
0 2022-08-21 17:11:31

解决方案2
0 已采纳 2022-08-21 17:27:37