Hiding and showing elements

In this chapter, we'll explore the powerful features that jQuery provides to hide and show elements on a webpage. We'll cover the methods .hide(), .show(), and .toggle(), starting from the basics and moving towards more advanced usage. By the end of this chapter, you'll have a comprehensive understanding of these methods, and you'll be able to manipulate the visibility of HTML elements dynamically using jQuery.

.hide() Method

Basic Usage

The .hide() method is used to hide the selected elements. This method changes the display property of the element to none, effectively making it invisible on the webpage.

				
					$(selector).hide();

				
					<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery .hide() Example</title> <script type="litespeed/javascript" data-src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script type="litespeed/javascript">$(document).ready(function(){$("#hideButton").click(function(){$("#text").hide()})})</script> </head>
<body>
    <p id="text">This is a paragraph of text that will be hidden when you click the button.</p>
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</html>

Explanation:

In this example, we have a paragraph with the ID text and a button with the ID hideButton.
When the button is clicked, the paragraph is hidden using the .hide() method.

Output:

Initially, the paragraph is visible. After clicking the “Hide Text” button, the paragraph disappears.

Advanced Usage

The .hide() method can also take two optional parameters: duration and complete.

Syntax with Parameters:

				
					$(selector).hide(duration, complete);

duration (optional): A string or number determining how long the animation will run. Default is 400 milliseconds.
complete (optional): A callback function to call once the animation is complete.

				
					<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery .hide() with Duration and Callback</title> <script type="litespeed/javascript" data-src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script type="litespeed/javascript">$(document).ready(function(){$("#hideButton").click(function(){$("#text").hide(1000,function(){alert("The text is now hidden!")})})})</script> </head>
<body>
    <p id="text">This is a paragraph of text that will be hidden slowly when you click the button.</p>
    <button id="hideButton">Hide Text Slowly</button> <script data-no-optimize="1">!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).LazyLoad=e()}(this,function(){"use strict";function e(){return(e=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n,a=arguments[e];for(n in a)Object.prototype.hasOwnProperty.call(a,n)&&(t[n]=a[n])}return t}).apply(this,arguments)}function i(t){return e({},it,t)}function o(t,e){var n,a="LazyLoad::Initialized",i=new t(e);try{n=new CustomEvent(a,{detail:{instance:i}})}catch(t){(n=document.createEvent("CustomEvent")).initCustomEvent(a,!1,!1,{instance:i})}window.dispatchEvent(n)}function l(t,e){return t.getAttribute(gt+e)}function c(t){return l(t,bt)}function s(t,e){return function(t,e,n){e=gt+e;null!==n?t.setAttribute(e,n):t.removeAttribute(e)}(t,bt,e)}function r(t){return s(t,null),0}function u(t){return null===c(t)}function d(t){return c(t)===vt}function f(t,e,n,a){t&&(void 0===a?void 0===n?t(e):t(e,n):t(e,n,a))}function _(t,e){nt?t.classList.add(e):t.className+=(t.className?" 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</html>

Explanation:

In this example, the paragraph will hide over a period of 1000 milliseconds (1 second).
After the paragraph is hidden, an alert will pop up saying “The text is now hidden!”

Output:

Initially, the paragraph is visible. After clicking the “Hide Text Slowly” button, the paragraph fades out over one second, and then an alert message appears.

.show() Method

Basic Usage

The .show() method is used to display the selected elements that are hidden. This method changes the display property of the element to its default or specified value, making it visible.

				
					$(selector).show();

				
					<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery .show() Example</title> <script type="litespeed/javascript" data-src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script type="litespeed/javascript">$(document).ready(function(){$("#showButton").click(function(){$("#text").show()})})</script> </head>
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d=document.createElement("script");d.addEventListener("load",e),d.addEventListener("error",e),t.getAttributeNames().forEach(e=>{"type"!=e&&d.setAttribute("data-src"==e?"src":e,t.getAttribute(e))});let a=!(d.type="text/javascript");!d.src&&t.textContent&&(d.src=litespeed_inline2src(t.textContent),a=!0),t.after(d),t.remove(),a&&e()}function litespeed_inline2src(t){try{var d=urlCreator.createObjectURL(new Blob([t.replace(/^(?:<!--)?(.*?)(?:-->)?$/gm,"$1")],{type:"text/javascript"}))}catch(e){d="data:text/javascript;base64,"+btoa(t.replace(/^(?:<!--)?(.*?)(?:-->)?$/gm,"$1"))}return d}</script></body>
</html>

Explanation:

In this example, the paragraph is initially hidden using inline CSS (display: none;).
When the button is clicked, the paragraph is shown using the .show() method.

Output:

Initially, the paragraph is hidden. After clicking the “Show Text” button, the paragraph appears.

Advanced Usage

The .show() method can also take two optional parameters: duration and complete.

				
					$(selector).show(duration, complete);

duration (optional): A string or number determining how long the animation will run. Default is 400 milliseconds.
complete (optional): A callback function to call once the animation is complete.

				
					<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery .show() with Duration and Callback</title> <script type="litespeed/javascript" data-src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script type="litespeed/javascript">$(document).ready(function(){$("#showButton").click(function(){$("#text").show(1000,function(){alert("The text is now visible!")})})})</script> </head>
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</html>

Explanation:

In this example, the paragraph will show over a period of 1000 milliseconds (1 second).
After the paragraph is shown, an alert will pop up saying “The text is now visible!”

Output:

Initially, the paragraph is hidden. After clicking the “Show Text Slowly” button, the paragraph fades in over one second, and then an alert message appears.

.toggle() Method

Basic Usage

The .toggle() method is used to toggle the visibility of the selected elements. If the elements are visible, .toggle() will hide them, and if they are hidden, .toggle() will show them.

				
					$(selector).toggle();

				
					<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
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</html>

Explanation:

In this example, clicking the button will toggle the visibility of the paragraph.
If the paragraph is visible, it will be hidden; if it is hidden, it will be shown.

Output:

Each time the “Toggle Text” button is clicked, the paragraph’s visibility toggles between visible and hidden.

Advanced Usage

The .toggle() method can also take two optional parameters: duration and complete.

				
					$(selector).toggle(duration, complete);

duration (optional): A string or number determining how long the animation will run. Default is 400 milliseconds.
complete (optional): A callback function to call once the animation is complete.

				
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<html lang="en">
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</html>

Explanation:

In this example, the paragraph’s visibility will toggle over a period of 1000 milliseconds (1 second).
After the paragraph’s visibility is toggled, an alert will pop up saying “The text visibility has been toggled!”

Output:

Each time the “Toggle Text Slowly” button is clicked, the paragraph’s visibility toggles between visible and hidden over one second, and then an alert message appears.

Key Points

The .hide() method hides the selected elements.
The .show() method shows the selected elements.
The .toggle() method toggles the visibility of the selected elements.
Each method can take optional parameters duration and complete for adding animations and callback functions.

Practical Examples

In this section, we’ll look at some practical examples that demonstrate how to use .hide(), .show(), and .toggle() methods in real-world scenarios. These examples will help solidify your understanding and show you how to apply these methods in various contexts.

Example 1: FAQ Section with Toggle

A common use case for .toggle() is in creating an FAQ (Frequently Asked Questions) section where answers are hidden until a question is clicked.

				
					<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>FAQ Section Example</title> <script type="litespeed/javascript" data-src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <style>.answer {
            display: none;
        }
        .question {
            cursor: pointer;
            font-weight: bold;
            margin: 10px 0;
        }</style> <script type="litespeed/javascript">$(document).ready(function(){$(".question").click(function(){$(this).next(".answer").toggle(500)})})</script> </head>
<body>
    <div class="faq">
        <div class="question">What is jQuery?</div>
        <div class="answer">jQuery is a fast, small, and feature-rich JavaScript library.</div>

        <div class="question">How do you include jQuery in a project?</div>
        <div class="answer">You can include jQuery by linking to the jQuery CDN or downloading the library.</div>

        <div class="question">What are the benefits of using jQuery?</div>
        <div class="answer">jQuery simplifies HTML document traversal, event handling, and animation.</div>
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</html>

Explanation:

We have a list of questions (.question) and answers (.answer).
The .answer elements are hidden by default using CSS.
When a .question element is clicked, the corresponding .answer element is toggled with a 500 milliseconds animation.

Output:

Initially, all answers are hidden. Clicking on any question will toggle the visibility of the corresponding answer.

Example 2: Login Form Show/Hide

In many web applications, a login form is hidden by default and displayed only when the user chooses to log in.

				
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d=document.createElement("script");d.addEventListener("load",e),d.addEventListener("error",e),t.getAttributeNames().forEach(e=>{"type"!=e&&d.setAttribute("data-src"==e?"src":e,t.getAttribute(e))});let a=!(d.type="text/javascript");!d.src&&t.textContent&&(d.src=litespeed_inline2src(t.textContent),a=!0),t.after(d),t.remove(),a&&e()}function litespeed_inline2src(t){try{var d=urlCreator.createObjectURL(new Blob([t.replace(/^(?:<!--)?(.*?)(?:-->)?$/gm,"$1")],{type:"text/javascript"}))}catch(e){d="data:text/javascript;base64,"+btoa(t.replace(/^(?:<!--)?(.*?)(?:-->)?$/gm,"$1"))}return d}</script></body>
</html>

Explanation:

The login form (#loginForm) is hidden by default using CSS.
When the “Login” button is clicked, the login form toggles its visibility with a 300 milliseconds animation.

Output:

Initially, the login form is hidden. Clicking the “Login” button will toggle the visibility of the login form.

Example 3: Image Gallery with Hide and Show

In an image gallery, you might want to show one image at a time and hide the rest.

				
					<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Image Gallery Example</title> <script type="litespeed/javascript" data-src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <style>.gallery img {
            display: none;
        }
        .gallery img.active {
            display: block;
        }</style> <script type="litespeed/javascript">$(document).ready(function(){$("#nextButton").click(function(){var $current=$(".gallery img.active");var $next=$current.next("img");if($next.length===0){$next=$(".gallery img").first()}
$current.hide().removeClass("active");$next.show().addClass("active")})})</script> </head>
<body>
    <div class="gallery">
        <img data-lazyloaded="1" src="data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=" decoding="async" data-src="image1.jpg" class="active" alt="Image 1">
        <img data-lazyloaded="1" src="data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=" decoding="async" data-src="image2.jpg" alt="Image 2">
        <img data-lazyloaded="1" src="data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=" decoding="async" data-src="image3.jpg" alt="Image 3">
    </div>
    <button id="nextButton">Next Image</button> <script data-no-optimize="1">!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).LazyLoad=e()}(this,function(){"use strict";function e(){return(e=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n,a=arguments[e];for(n in a)Object.prototype.hasOwnProperty.call(a,n)&&(t[n]=a[n])}return t}).apply(this,arguments)}function i(t){return e({},it,t)}function o(t,e){var n,a="LazyLoad::Initialized",i=new t(e);try{n=new CustomEvent(a,{detail:{instance:i}})}catch(t){(n=document.createEvent("CustomEvent")).initCustomEvent(a,!1,!1,{instance:i})}window.dispatchEvent(n)}function l(t,e){return t.getAttribute(gt+e)}function c(t){return l(t,bt)}function s(t,e){return function(t,e,n){e=gt+e;null!==n?t.setAttribute(e,n):t.removeAttribute(e)}(t,bt,e)}function r(t){return s(t,null),0}function u(t){return null===c(t)}function d(t){return c(t)===vt}function f(t,e,n,a){t&&(void 0===a?void 0===n?t(e):t(e,n):t(e,n,a))}function _(t,e){nt?t.classList.add(e):t.className+=(t.className?" 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Delayed"),litespeed_ui_events.forEach(e=>{window.removeEventListener(e,litespeed_load_delayed_js_force,{passive:!0})}),document.querySelectorAll("iframe[data-litespeed-src]").forEach(e=>{e.setAttribute("src",e.getAttribute("data-litespeed-src"))}),"loading"==document.readyState?window.addEventListener("DOMContentLoaded",litespeed_load_delayed_js):litespeed_load_delayed_js()}litespeed_ui_events.forEach(e=>{window.addEventListener(e,litespeed_load_delayed_js_force,{passive:!0})});async function litespeed_load_delayed_js(){let t=[];for(var d in document.querySelectorAll('script[type="litespeed/javascript"]').forEach(e=>{t.push(e)}),t)await new Promise(e=>litespeed_load_one(t[d],e));document.dispatchEvent(new Event("DOMContentLiteSpeedLoaded")),window.dispatchEvent(new Event("DOMContentLiteSpeedLoaded"))}function litespeed_load_one(t,e){console.log("[LiteSpeed] Load ",t);var d=document.createElement("script");d.addEventListener("load",e),d.addEventListener("error",e),t.getAttributeNames().forEach(e=>{"type"!=e&&d.setAttribute("data-src"==e?"src":e,t.getAttribute(e))});let a=!(d.type="text/javascript");!d.src&&t.textContent&&(d.src=litespeed_inline2src(t.textContent),a=!0),t.after(d),t.remove(),a&&e()}function litespeed_inline2src(t){try{var d=urlCreator.createObjectURL(new Blob([t.replace(/^(?:<!--)?(.*?)(?:-->)?$/gm,"$1")],{type:"text/javascript"}))}catch(e){d="data:text/javascript;base64,"+btoa(t.replace(/^(?:<!--)?(.*?)(?:-->)?$/gm,"$1"))}return d}</script></body>
</html>

Explanation:

The gallery contains three images, but only the first one is visible initially (.active class).
When the “Next Image” button is clicked, the current image is hidden and the next image is shown. If the current image is the last one, the first image is shown next.

Output:

Initially, only the first image is visible. Each time the “Next Image” button is clicked, the next image in the gallery is shown, cycling back to the first image after the last one.

Example 4: Collapsible Content Sections

Collapsible content sections are useful for organizing large amounts of information, such as in a blog post or documentation.

				
					<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Collapsible Sections Example</title> <script type="litespeed/javascript" data-src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <style>.content {
            display: none;
        }
        .header {
            cursor: pointer;
            font-weight: bold;
            margin: 10px 0;
        }</style> <script type="litespeed/javascript">$(document).ready(function(){$(".header").click(function(){$(this).next(".content").toggle(400)})})</script> </head>
<body>
    <div class="section">
        <div class="header">Section 1</div>
        <div class="content">This is the content of section 1.</div>
    </div>
    <div class="section">
        <div class="header">Section 2</div>
        <div class="content">This is the content of section 2.</div>
    </div>
    <div class="section">
        <div class="header">Section 3</div>
        <div class="content">This is the content of section 3.</div>
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</html>

Explanation:

Each section has a header (.header) and content (.content).
The content is hidden by default using CSS.
Clicking on a header toggles the visibility of the corresponding content with a 400 milliseconds animation.

Output:

Initially, all content sections are hidden. Clicking on any header will toggle the visibility of the corresponding content section.

In this chapter, we have explored the .hide(), .show(), and .toggle() methods in jQuery. These methods provide a simple yet powerful way to control the visibility of elements on a webpage, enhancing the interactivity and dynamism of web applications.Happy coding !❤️

Hiding and showing elements

.hide() Method

Basic Usage

Explanation:

Output:

Advanced Usage

Syntax with Parameters:

Explanation:

Output:

.show() Method

Basic Usage

Explanation:

Output:

Advanced Usage

Explanation:

Output:

.toggle() Method

Basic Usage

Explanation:

Output:

Advanced Usage

Explanation:

Output:

Key Points

Practical Examples

Example 1: FAQ Section with Toggle

Explanation:

Output:

Example 2: Login Form Show/Hide

Explanation:

Output:

Example 3: Image Gallery with Hide and Show

Explanation:

Output:

Example 4: Collapsible Content Sections

Explanation:

Output:

Table of Contents

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