我想在提交之前尝试验证输入,因此我在输入末尾使用了必需的属性,但是它不起作用,并且我已经尝试了一些推荐的解决方案,例如将输入包装在表单标签中或尝试关闭输入()的标记,但是当我使用空输入提交表单时,它仍会正常提交,并且未声明必填字段。我将不胜感激,谢谢!这是我的代码的一部分
<form id="form" style="background-color:honeydew ;" class="container text-center">
<div><br><h2> Contact Us </h2></div>
<div id="contact">
<div>
<label> Name</label>
<input type="text" placeholder="Your name " name="name" required/>
</div>
<br>
<div>
<label> Email</label>
<input type="email" placeholder="[email protected]" name="email" name="email">
</div>
<br>
<div>
<label> Message</label>
<input type="text" style="height:50px;" name="message">
</div>
<br>
<div><input type="button" value="submit" name="submit"><br></div>
<br>
</div>
<br>
</form>
这是链接到它的javascript文件:
//we take informations subbmitted by user from the form and we replace the form with a reply
//containing these pieces of information on the click on the submit button
var form=document.getElementById('form'),
contactForm=document.getElementById('contact'),
submitButton=contactForm.children[6].children[0];
var processForm= function(){
name=document.getElementsByName('name')[0].value,
email=document.getElementsByName('email')[0].value,
sitereplyText=document.createTextNode('this is a initialiazing value'),
sitereplyEl=document.createElement('p');
mytext= 'Hey '+name+'! Thanks for your message :) We will email you back at '+email;
sitereplyText.nodeValue=mytext;
sitereplyEl.appendChild(sitereplyText);
form.replaceChild(sitereplyEl,contactForm);
}
submitButton.addEventListener('click',processForm);
<input type="submit" value="submit" name="submit">
然后在我更改的javascript文件中
submitButton.addEventListener('click',processForm);
to
submitButton.addEventListener('form.submit()',processForm);
并且似乎起作用:)