javascript - 尽管 onClick 应该返回 false，但表单已提交

Question

我已经检查过How to prevent form from being submitted?但这并没有帮助。

我有一个注册表单，其中包含一些输入内容和一个提交按钮

<script src="formValidation.js"></script> 
<script src="md5.js"></script>
<script language="javascript">
function doSomething() {   
str = document.registration.userpass.value;
str2 = document.registration.userpass2.value;
document.registration.response.value = MD5(str);
document.registration.response2.value = MD5(str2);
document.registration.userpass.value="";
document.registration.userpass2.value="";
formValidation();}


<form name="registration" action="/Arnito_test/Register" method="post"  >
<input onClick="return doSomething();" type=submit>

formValidation.js:

function formValidation() {
    ...
        if (registration.userpass.value == registration.username.value) {
            alert("Error: Password must be different from Username!");
           document.registration.userpass.focus();
            return false;
        }
...}

如果我强制执行此警报，它就会出现，但表单仍会提交。return false 应该阻止它，不是吗？

Answer 1

doSomething() 需要一个 return 语句。最后一行应该是:

return formValidation();