最新消息:雨落星辰是一个专注网站SEO优化、网站SEO诊断、搜索引擎研究、网络营销推广、网站策划运营及站长类的自媒体原创博客

How to validate form in jQuery - Stack Overflow

programmeradmin1浏览0评论

I am trying to validate a form using jQuery, but I’m not sure how to properly implement validation for required fields, email format, and other constraints.

Here’s my current HTML form:

<form id="myForm">
    <label for="name">Name:</label>
    <input type="text" id="name" name="name">
    
    <label for="email">Email:</label>
    <input type="text" id="email" name="email">
    
    <button type="submit">Submit</button>
</form>

And my jQuery code so far:

$(document).ready(function () {
    $("#myForm").submit(function (event) {
        var name = $("#name").val();
        var email = $("#email").val();
        
        if (name.trim() === "") {
            alert("Name is required");
            event.preventDefault();
        }
        
        var emailPattern = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
        if (!emailPattern.test(email)) {
            alert("Invalid email address");
            event.preventDefault();
        }
    });
});

While this seems to work, I would like to know:

Is this the best way to validate a form using jQuery? Are there any improvements I can make to avoid repetitive event.preventDefault() calls? Should I consider using the jQuery Validation Plugin instead? Any guidance or best practices would be greatly appreciated!

I am trying to validate a form using jQuery, but I’m not sure how to properly implement validation for required fields, email format, and other constraints.

Here’s my current HTML form:

<form id="myForm">
    <label for="name">Name:</label>
    <input type="text" id="name" name="name">
    
    <label for="email">Email:</label>
    <input type="text" id="email" name="email">
    
    <button type="submit">Submit</button>
</form>

And my jQuery code so far:

$(document).ready(function () {
    $("#myForm").submit(function (event) {
        var name = $("#name").val();
        var email = $("#email").val();
        
        if (name.trim() === "") {
            alert("Name is required");
            event.preventDefault();
        }
        
        var emailPattern = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
        if (!emailPattern.test(email)) {
            alert("Invalid email address");
            event.preventDefault();
        }
    });
});

While this seems to work, I would like to know:

Is this the best way to validate a form using jQuery? Are there any improvements I can make to avoid repetitive event.preventDefault() calls? Should I consider using the jQuery Validation Plugin instead? Any guidance or best practices would be greatly appreciated!

Share Improve this question asked Mar 13 at 11:39 Mạnh Nguyễn ThiếtMạnh Nguyễn Thiết 11 silver badge1 bronze badge 1
  • 1 Use this : jqueryvalidation./documentation – Death-is-the-real-truth Commented Mar 13 at 11:42
Add a comment  | 

1 Answer 1

Reset to default 4

Why work so hard, you can get the desired results by adding html attributes, required, and set input to type email.

Your JS looks solid, but either way, remember to verify on server side as well, as all client side validaton can be disabled or bypassed.

<form id="myForm">
    <label for="name">Name:</label>
    <input type="text" id="name" name="name" required>

    <label for="email">Email:</label>
    <input type="email" id="email" name="email" required>

    <button type="submit">Submit</button>
</form>
发布评论

评论列表(0)

  1. 暂无评论