How to use the serialize method in jquery

In jquery, the serialize() method creates a standard URL-encoded text string by serializing the form value. The serialized value can be used in the URL query string when generating an AJAX request. The syntax is " $(selector).serialize()".

The operating environment of this tutorial: windows10 system, jquery1.10.2 version, Dell G3 computer.

How to use the serialize method in jquery

serialize() definition and usage: The

serialize() method creates a standard URL-encoded text string by serializing form values. Its operation object is a jQuery object that represents a collection of form elements. You can select one or more form elements (such as inputs or text boxes), or the form element itself. Serialized values ​​can be used in URL query strings when generating AJAX requests.

Syntax:

$(selector).serialize()

Detailed description

1. The .serialize() method creates a text string represented by standard URL encoding. Its operation object is a jQuery object that represents a collection of form elements.

2. The .serialize() method can operate jQuery objects that have selected individual form elements, such as , and <select>. However, it is generally easier to select the <form> tag itself for serialization</p><p>3. Only "successful controls" will be serialized into strings. If you do not use a button to submit the form, the submit button's value is not serialized. If you want the form element's value to be included in a sequence string, the element must use the name attribute. </p><p>4. The name in the form cannot use keywords in Js or jquery. </p><p>For example: length</p><p>The code is as follows:</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><form id="form1"> <input name="length" type="text" value="pipi" /> <input name="blog" type="text" value="blue submarine" /> </form> //使用:$("#form1").serialize();</pre><div class="contentsignin">Copy after login</div></div><p>The above value cannot be obtained. </p><p><strong>serialize() example in JQuery</strong></p><p>1, ajax serialize()</p><p>The code is as follows:</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>$.ajax({ type: "POST", dataType: "json", url:ajaxCallBack, data:$(&#39;#myForm&#39;).serialize(),// 要提交表单的ID success: function(msg){ alert(msg); } });</pre><div class="contentsignin">Copy after login</div></div><p>2, serialize( ) Serialized form example</p><p>The code is as follows:</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script> <script> $(function(){ $("#submit").click(function(){ alert($("#myForm").serialize()); }); }); </script> <form id="myForm"> 昵称 <input type="text" name="username" value="admin" /><br /> 密码 <input type="password" name="password" value="admin123" /><br /> <input type="button" id="submit" value="序列化表单" /> </form></pre><div class="contentsignin">Copy after login</div></div><p>After clicking the button, it pops up:</p> <p>username=admin&password=admin123</p> <p>Related video tutorial recommendations:<a href="https://www.php.cn/course/list/19.html" target="_blank" textvalue="jQuery教程">jQuery video tutorial</a></p><p>The above is the detailed content of How to use the serialize method in jquery. 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It can be introduced through a CDN link or downloaded</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/692099.html" title="How to remove the height attribute of an element with jQuery?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170908075260378.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to remove the height attribute of an element with jQuery?" /> </a> <a href="https://www.php.cn/faq/692099.html" title="How to remove the height attribute of an element with jQuery?" class="phphistorical_Version2_mids_title">How to remove the height attribute of an element with jQuery?</a> <span class="Articlelist_txts_time">Feb 28, 2024 am 08:39 AM</span> <p class="Articlelist_txts_p">How to remove the height attribute of an element with jQuery? In front-end development, we often encounter the need to manipulate the height attributes of elements. Sometimes, we may need to dynamically change the height of an element, and sometimes we need to remove the height attribute of an element. This article will introduce how to use jQuery to remove the height attribute of an element and provide specific code examples. Before using jQuery to operate the height attribute, we first need to understand the height attribute in CSS. The height attribute is used to set the height of an element</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/692694.html" title="How to use PUT request method in jQuery?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/000/164/170910433346845.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to use PUT request method in jQuery?" /> </a> <a href="https://www.php.cn/faq/692694.html" title="How to use PUT request method in jQuery?" class="phphistorical_Version2_mids_title">How to use PUT request method in jQuery?</a> <span class="Articlelist_txts_time">Feb 28, 2024 pm 03:12 PM</span> <p class="Articlelist_txts_p">How to use PUT request method in jQuery? In jQuery, the method of sending a PUT request is similar to sending other types of requests, but you need to pay attention to some details and parameter settings. PUT requests are typically used to update resources, such as updating data in a database or updating files on the server. The following is a specific code example using the PUT request method in jQuery. First, make sure you include the jQuery library file, then you can send a PUT request via: $.ajax({u</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/693182.html" title="jQuery Tips: Quickly modify the text of all a tags on the page" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170912557218266.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="jQuery Tips: Quickly modify the text of all a tags on the page" /> </a> <a href="https://www.php.cn/faq/693182.html" title="jQuery Tips: Quickly modify the text of all a tags on the page" class="phphistorical_Version2_mids_title">jQuery Tips: Quickly modify the text of all a tags on the page</a> <span class="Articlelist_txts_time">Feb 28, 2024 pm 09:06 PM</span> <p class="Articlelist_txts_p">Title: jQuery Tips: Quickly modify the text of all a tags on the page In web development, we often need to modify and operate elements on the page. When using jQuery, sometimes you need to modify the text content of all a tags in the page at once, which can save time and energy. The following will introduce how to use jQuery to quickly modify the text of all a tags on the page, and give specific code examples. First, we need to introduce the jQuery library file and ensure that the following code is introduced into the page: &lt</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/691569.html" title="In-depth analysis: jQuery's advantages and disadvantages" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170902549498790.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="In-depth analysis: jQuery's advantages and disadvantages" /> </a> <a href="https://www.php.cn/faq/691569.html" title="In-depth analysis: jQuery's advantages and disadvantages" class="phphistorical_Version2_mids_title">In-depth analysis: jQuery's advantages and disadvantages</a> <span class="Articlelist_txts_time">Feb 27, 2024 pm 05:18 PM</span> <p class="Articlelist_txts_p">jQuery is a fast, small, feature-rich JavaScript library widely used in front-end development. Since its release in 2006, jQuery has become one of the tools of choice for many developers, but in practical applications, it also has some advantages and disadvantages. This article will deeply analyze the advantages and disadvantages of jQuery and illustrate it with specific code examples. Advantages: 1. Concise syntax jQuery's syntax design is concise and clear, which can greatly improve the readability and writing efficiency of the code. for example,</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/692928.html" title="Use jQuery to modify the text content of all a tags" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/465/014/170911333171493.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Use jQuery to modify the text content of all a tags" /> </a> <a href="https://www.php.cn/faq/692928.html" title="Use jQuery to modify the text content of all a tags" class="phphistorical_Version2_mids_title">Use jQuery to modify the text content of all a tags</a> <span class="Articlelist_txts_time">Feb 28, 2024 pm 05:42 PM</span> <p class="Articlelist_txts_p">Title: Use jQuery to modify the text content of all a tags. jQuery is a popular JavaScript library that is widely used to handle DOM operations. In web development, we often encounter the need to modify the text content of the link tag (a tag) on ​​the page. This article will explain how to use jQuery to achieve this goal, and provide specific code examples. First, we need to introduce the jQuery library into the page. Add the following code in the HTML file:</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/693462.html" title="How to tell if a jQuery element has a specific attribute?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/000/164/170916859138598.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to tell if a jQuery element has a specific attribute?" /> </a> <a href="https://www.php.cn/faq/693462.html" title="How to tell if a jQuery element has a specific attribute?" class="phphistorical_Version2_mids_title">How to tell if a jQuery element has a specific attribute?</a> <span class="Articlelist_txts_time">Feb 29, 2024 am 09:03 AM</span> <p class="Articlelist_txts_p">How to tell if a jQuery element has a specific attribute? When using jQuery to operate DOM elements, you often encounter situations where you need to determine whether an element has a specific attribute. In this case, we can easily implement this function with the help of the methods provided by jQuery. The following will introduce two commonly used methods to determine whether a jQuery element has specific attributes, and attach specific code examples. Method 1: Use the attr() method and typeof operator // to determine whether the element has a specific attribute</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/692515.html" title="Understand the role and application scenarios of eq in jQuery" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/170909731284988.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Understand the role and application scenarios of eq in jQuery" /> </a> <a href="https://www.php.cn/faq/692515.html" title="Understand the role and application scenarios of eq in jQuery" class="phphistorical_Version2_mids_title">Understand the role and application scenarios of eq in jQuery</a> <span class="Articlelist_txts_time">Feb 28, 2024 pm 01:15 PM</span> <p class="Articlelist_txts_p">jQuery is a popular JavaScript library that is widely used to handle DOM manipulation and event handling in web pages. In jQuery, the eq() method is used to select elements at a specified index position. The specific usage and application scenarios are as follows. In jQuery, the eq() method selects the element at a specified index position. Index positions start counting from 0, i.e. the index of the first element is 0, the index of the second element is 1, and so on. The syntax of the eq() method is as follows: $("s</p> </div> </div> <a href="https://www.php.cn/web-designer.html" class="phpgenera_Details_mainL4_botton"> <span>See all articles</span> <img src="/static/imghw/down_right.png" alt="" /> </a> </div> </div> </div> </main> <footer> <div class="footer"> <div class="footertop"> <img src="/static/imghw/logo.png" alt=""> <p>Public welfare online PHP training，Help PHP learners grow quickly！</p> </div> <div class="footermid"> <a href="https://www.php.cn/about/us.html">About us</a> <a href="https://www.php.cn/about/disclaimer.html">Disclaimer</a> <a href="https://www.php.cn/update/article_0_1.html">Sitemap</a> </div> <div class="footerbottom"> <p> © php.cn All rights reserved </p> </div> </div> </footer> <input type="hidden" id="verifycode" value="/captcha.html"> <script>layui.use(['element', 'carousel'], function () {var element = layui.element;$ = layui.jquery;var carousel = layui.carousel;carousel.render({elem: '#test1', width: '100%', height: '330px', arrow: 'always'});$.getScript('/static/js/jquery.lazyload.min.js', function () {$("img").lazyload({placeholder: "/static/images/load.jpg", effect: "fadeIn", threshold: 200, skip_invisible: false});});});</script> <script src="/static/js/common_new.js"></script> <script type="text/javascript" src="/static/js/jquery.cookie.js?1743849955"></script> <script src="https://vdse.bdstatic.com//search-video.v1.min.js"></script> <link rel='stylesheet' id='_main-css' href='/static/css/viewer.min.css?2' type='text/css' media='all' /> <script type='text/javascript' src='/static/js/viewer.min.js?1'></script> <script type='text/javascript' src='/static/js/jquery-viewer.min.js'></script> <script type="text/javascript" src="/static/js/global.min.js?5.5.53"></script> <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function () { var u = "https://tongji.php.cn/"; _paq.push(['setTrackerUrl', u + 'matomo.php']); _paq.push(['setSiteId', '9']); var d = document, g = d.createElement('script'), s = d.getElementsByTagName('script')[0]; g.async = true; g.src = u + 'matomo.js'; s.parentNode.insertBefore(g, s); })(); </script> <script> // top layui.use(function () { var util = layui.util; util.fixbar({ on: { mouseenter: function (type) { layer.tips(type, this, { tips: 4, fixed: true, }); }, mouseleave: function (type) { layer.closeAll("tips"); }, }, }); }); document.addEventListener("DOMContentLoaded", (event) => { // 定义一个函数来处理滚动链接的点击事件 function setupScrollLink(scrollLinkId, targetElementId) { const scrollLink = document.getElementById(scrollLinkId); const targetElement = document.getElementById(targetElementId); if (scrollLink && targetElement) { scrollLink.addEventListener("click", (e) => { e.preventDefault(); // 阻止默认链接行为 targetElement.scrollIntoView({ behavior: "smooth" }); // 平滑滚动到目标元素 }); } else { console.warn( `Either scroll link with ID '${scrollLinkId}' or target element with ID '${targetElementId}' not found.` ); } } // 使用该函数设置多个滚动链接 setupScrollLink("Article_Details_main1L2s_1", "article_main_title1"); setupScrollLink("Article_Details_main1L2s_2", "article_main_title2"); setupScrollLink("Article_Details_main1L2s_3", "article_main_title3"); setupScrollLink("Article_Details_main1L2s_4", "article_main_title4"); setupScrollLink("Article_Details_main1L2s_5", "article_main_title5"); setupScrollLink("Article_Details_main1L2s_6", "article_main_title6"); // 可以继续添加更多的滚动链接设置 }); window.addEventListener("scroll", function () { var fixedElement = document.getElementById("Article_Details_main1Lmain"); var scrollTop = window.scrollY || document.documentElement.scrollTop; // 兼容不同浏览器 var clientHeight = window.innerHeight || document.documentElement.clientHeight; // 视口高度 var scrollHeight = document.documentElement.scrollHeight; // 页面总高度 // 计算距离底部的距离 var distanceToBottom = scrollHeight - scrollTop - clientHeight; // 当距离底部小于或等于300px时，取消固定定位 if (distanceToBottom <= 980) { fixedElement.classList.remove("Article_Details_main1Lmain"); fixedElement.classList.add("Article_Details_main1Lmain_relative"); } else { // 否则，保持固定定位 fixedElement.classList.remove("Article_Details_main1Lmain_relative"); fixedElement.classList.add("Article_Details_main1Lmain"); } }); </script> </body> </html>