search
HomeWeb Front-endJS TutorialDetailed explanation of jQuery.submit() function
Detailed explanation of jQuery.submit() functionJun 29, 2017 am 10:31 AM
functionDetailed explanation

Thesubmit() function is used to bind a handler function to the submit event of each matching element. This function can also be used to trigger the submit event. In addition, you can also pass some additional data to the Event Handling function.

The submit event will be triggered when the form is submitted. This event only applies to

elements.

In addition, you can call this function multiple times for the same element to bind multiple event handlers. When the submit event is triggered, jQuery will execute the bound event processing functions in the order of binding.

To delete an event bound via submit(), use the unbind() function.

This function belongs to the jQuery object (instance).

Syntax

jQueryObject.submit( [ [ data ,] handler ] )

If at least one parameter is specified, it means binding the handler function of the submit event; if not specified Any parameter means triggering the submit event.

Parameters

Parameter Description

data Optional/Any type of data that needs to be passed to the event processing function through event.data when an event is triggered.

handler Optional/event handling function specified by Function type.

jQuery 1.4.3 New support: submit() supports data parameters.

This in the parameter handler points to the current DOM element. submit() will also pass in a parameter to the handler: the Event object representing the current event.

If the return value of the function handler is false, it means to prevent the element's default event behavior and stop the event from bubbling in the DOM tree. For example, if the handler function of the click event of the link returns false, the default URL jump behavior of the link can be prevented. The handler function of the submit event of the form returns false, which can prevent the form's default form submission behavior.

Return value

submit()The return value of the function is of jQuery type and returns the current jQuery object itself.

Example & Description

Please refer to the following initial HTML code:

<form id="myForm" action="http://www.365mini.com" method="post">
    <input id="name" name="name" type="text" value="CodePlayer" /><br>
    <input id="age" name="age" type="text" value="20" /><br>
    <input type="submit" value="提交" />
</form>
<div id="msg"></div>

Now, we bind a handler function to the submit event of the

element (you can bind Defined multiple, executed in sequence according to the binding order when triggered):
$("form").submit( function(event){
    if( !$("#name").val() ){
        alert("姓名不能为空!");
        return false; // 返回值为false,将阻止表单提交
    }else if( !$("#age").val() ){
        alert("年龄不能为空!");
        return false; // 返回值为false,将阻止表单提交
    }
} );
// 触发form元素的submit事件
// $("form").submit( );

We can also pass some additional data to the event processing function. In addition, through the parameter Event object passed in by jQuery for the event processing function, we can obtain relevant information about the current event (such as event type, DOM element that triggered the event, additional data, etc.):

var map = { name: "姓名", age: "年龄" };
$("form").submit( map, function(event){
    var labelMap = event.data;
    var label = &#39;&#39;;
    // 循环验证所有text元素是否为空
    $(this).find(":text").each(function(){
        if( !this.value ){
            label = labelMap[this.name];
            return false;
        }       
    });    
    if( label ){
        alert( label + "不能为空!" );
        return false;
    }
} );

The above is the detailed content of Detailed explanation of jQuery.submit() function. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
C++中的众数函数详解C++中的众数函数详解Nov 18, 2023 pm 03:08 PM

C++中的众数函数详解在统计学中,众数指的是一组数据中出现次数最多的数值。在C++语言中,我们可以通过编写一个众数函数来找到任意一组数据中的众数。众数函数的实现可以采用多种不同的方法,下面将详细介绍其中两种常用的方法。第一种方法是使用哈希表来统计每个数字出现的次数。首先,我们需要定义一个哈希表,将每个数字作为键,出现次数作为值。然后,对于给定的数据集,我们遍

C++中的取余函数详解C++中的取余函数详解Nov 18, 2023 pm 02:41 PM

C++中的取余函数详解在C++中,取余运算符(%)用于计算两个数相除的余数。它是一种二元运算符,其操作数可以是任何整数类型(包括char、short、int、long等),也可以是浮点数类型(如float、double)。取余运算符返回的结果与被除数的符号相同。例如,对于整数的取余运算,我们可以使用以下代码来实现:inta=10;intb=3;

Vue.nextTick函数用法详解及在异步更新中的应用Vue.nextTick函数用法详解及在异步更新中的应用Jul 26, 2023 am 08:57 AM

Vue.nextTick函数用法详解及在异步更新中的应用在Vue开发中,经常会遇到需要进行异步更新数据的情况,比如在修改DOM后需要立即更新数据或者在数据更新后需要立即进行相关操作。而Vue提供的.nextTick函数就是为了解决这类问题而出现的。本文就会详细介绍Vue.nextTick函数的用法,并结合代码示例来说明它在异步更新中的应用。一、Vue.nex

Django框架中的缓存机制详解Django框架中的缓存机制详解Jun 18, 2023 pm 01:14 PM

在Web应用程序中,缓存通常是用来优化性能的重要手段。Django作为一款著名的Web框架,自然也提供了完善的缓存机制来帮助开发者进一步提高应用程序的性能。本文将对Django框架中的缓存机制进行详解,包括缓存的使用场景、建议的缓存策略、缓存的实现方式和使用方法等方面。希望对Django开发者或对缓存机制感兴趣的读者有所帮助。一、缓存的使用场景缓存的使用场景

php-fpm调优方法详解php-fpm调优方法详解Jul 08, 2023 pm 04:31 PM

PHP-FPM是一种常用的PHP进程管理器,用于提供更好的PHP性能和稳定性。然而,在高负载环境下,PHP-FPM的默认配置可能无法满足需求,因此我们需要对其进行调优。本文将详细介绍PHP-FPM的调优方法,并给出一些代码示例。一、增加进程数默认情况下,PHP-FPM只启动少量的进程来处理请求。在高负载环境下,我们可以通过增加进程数来提高PHP-FPM的并发

PHP function_exists()函数用法详解PHP function_exists()函数用法详解Jun 27, 2023 am 10:32 AM

在PHP开发中,有时我们需要判断某个函数是否可用,这时我们便可以使用function_exists()函数。本文将详细介绍function_exists()函数的用法。一、什么是function_exists()函数?function_exists()函数是PHP自带的一个内置函数,用于判断某个函数是否被定义。该函数返回一个布尔值,如果函数存在返回True,

PHP strpos()函数用法详解PHP strpos()函数用法详解Jun 27, 2023 am 10:43 AM

PHPstrpos()函数用法详解在PHP编程中,字符串处理是非常重要的一部分。PHP通过提供一些内置函数来实现字符串处理。其中,strpos()函数就是PHP中最常用的一个字符串函数之一。该函数的目的是在一个指定的字符串中搜索另一个指定字符串的位置,如果包含则返回这个位置,否则返回false。本文将通过详细分析PHPstrpos()函数的用法,助你更好

Gin框架的模板渲染功能详解Gin框架的模板渲染功能详解Jun 22, 2023 pm 10:37 PM

Gin框架是目前非常流行的Go语言Web框架之一。作为一个轻量级的框架,Gin提供了丰富的功能和灵活的架构,使得它在Web开发领域中备受欢迎。其中一个特别重要的功能是模板渲染。在本文中,我们将介绍Gin框架的模板渲染功能,并深入了解它的实现原理。一、Gin框架的模板渲染功能Gin框架使用了多种模板渲染引擎来构建Web应用程序。目前,它支持以下几种模板引擎:

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.