如何在不通过 jQuery 提交的情况下强制进行 html5 表单验证 [英] How to force a html5 form validation without submitting it via jQuery

问题描述

我的应用中有这个表单，我将通过 AJAX 提交它，但我想使用 HTML5 进行客户端验证.所以我希望能够强制进行表单验证，也许是通过 jQuery.

I have this form in my app and I will submit it via AJAX, but I want to use HTML5 for client-side validation. So I want to be able to force the form validation, perhaps via jQuery.

我想在不提交表单的情况下触发验证.可能吗?

I want to trigger the validation without submitting the form. Is it possible?

推荐答案

要检查某个字段是否有效，请使用:

To check whether a certain field is valid, use:

$('#myField')[0].checkValidity(); // returns true|false

要检查表单是否有效，请使用:

To check if the form is valid, use:

$('#myForm')[0].checkValidity(); // returns true|false

如果您想显示某些浏览器(例如 Chrome)的本机错误消息，不幸的是，唯一的方法是提交表单，如下所示:

If you want to display the native error messages that some browsers have (such as Chrome), unfortunately the only way to do that is by submitting the form, like this:

var $myForm = $('#myForm');

if (!$myForm[0].checkValidity()) {
    // If the form is invalid, submit it. The form won't actually submit;
    // this will just cause the browser to display the native HTML5 error messages.
    $myForm.find(':submit').click();
}

请记住，目前并非所有浏览器都支持 HTML5 验证.

Keep in mind that, HTML5 validation is not supported in all browsers till now.

这篇关于如何在不通过 jQuery 提交的情况下强制进行 html5 表单验证的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！