Gain insights into jQuery for interactive web pages with animations, event-handling, AJAX, and DOM manipulation. Explore core concepts and apply your knowledge in an interactive project with quizzes.

This course will introduce you to jQuery, a framework for building interactive web pages with animations, visual effects, and advanced functionality. You will start with a brief introduction to the course and jQuery. 

Next, you will explore the core concepts in jQuery, such as event-handling, animations, and in-browser manipulation of the document object model. 

Finally, you will learn about the AJAX framework in jQuery for dynamic content loading in web pages. On top of that, you will be working on an interactive project throughout the course with quizzes and challenges at the end of each chapter.

The Complete Guide to jQuery

Fading effects allow us to **fade out** or **fade in** certain elements on a webpage. The relevant effects are discussed in detail below.
 
## `fadeOut()` effect

Given a selector, the **`fadeOut()`** effect fades out and hides the set of matched elements from a webpage. The `fadeout()`effect functions like `hide()`, but it has a delay. Like the effects studied earlier, `fadeOut()` can also take an optional `speed` parameter.

For example, in the _"Fade Out"_ button event handler below, we fade out all the `div` elements in 2000 ms using the `fadeOut()` effect in **line 3**.  

body{
  background-color: #Dbe1f5;
}

div {
  display: table-cell;
  border-style: solid;
  text-align: center;
  padding: 30px;
  font-size: 20;
  border-color: #227C9D;
  background-color: rgb(60, 197, 247);
}
button{
  margin: 5px;
  text-align: center;
}



$(document).ready(function() {
    $("button").click(function() {
        $("div").fadeOut(2000);
    })
});

codemirror

## `fadeIn()` effect

Given a selector, the **`fadeIn()`** effect fades in and displays the hidden elements present in the set of matched elements on the webpage. These elements could have been hidden using either the `fadeOut()` or the `hide()` method. Similar to the other effects, `fadeOut()` can also take an optional `speed` parameter.

In the _"Fade In"_ button event handler below, we fade in and redisplay the hidden `div` elements in 3000 ms using the `fadeIn()` effect in **line 7**. 

body{
  background-color: #Dbe1f5;
}

div {
  display: table-cell;
  border-style: solid;
  text-align: center;
  margin: 30px;
  padding: 30px;
  font-size: 20;
  border-color: #227C9D;
  background-color: rgb(60, 197, 247);
}
button{
  margin: 5px;
  text-align: center;
}



$(document).ready(function() {
    $("#fadeOut").click(function() {
        $("div").fadeOut(2000);
    })

    $("#fadeIn").click(function() {
        $("div").fadeIn(3000);
    })
});

## `fadeToggle()` effect
The **`fadeToggle()`** effect is a combination of `fadeIn()` and `fadeOut()`. It resembles the `toggle()` effect. Given a selector, if the matched elements are in a visible state, this effect fades out the elements from the webpage. Similarly, if the matched elements are hidden, the effect fades them in and the elements reappear on the webpage.

You can observe the behavior in this example. In the _"Toggle Fade"_ button event handler below, we toggle between fading out and fading in `div` elements using the `fadeToggle()` effect in **line 3**. 

<html>
 <head>
   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js">
   </script>
 </head>
 <body>
   <button> Fade Toggle </button>
   <div>
      Div  
   </div>
 </body>
</html>

$(document).ready(function() {
    $("button").click(function() {
        $("div").fadeToggle(3000);
    })
});

Fading effects allow us to **fade out** or **fade in** certain elements on a webpage. The relevant effects are discussed in detail below.
 
# `fadeOut()` effect

Given a selector, the **`fadeOut()`** effect fades out and hides the set of matched elements from a webpage. The `fadeout()`effect functions like `hide()`, but it has a delay. Like the effects studied earlier, `fadeOut()` can also take an optional `speed` parameter.

For example, in the _"Fade Out"_ button event handler below, we fade out all the `div` elements in 2000 ms using the `fadeOut()` effect in **line 3**.  

# `fadeIn()` effect

Given a selector, the **`fadeIn()`** effect fades in and displays the hidden elements present in the set of matched elements on the webpage. These elements could have been hidden using either the `fadeOut()` or the `hide()` method. Similar to the other effects, `fadeOut()` can also take an optional `speed` parameter.

In the _"Fade In"_ button event handler below, we fade in and redisplay the hidden `div` elements in 3000 ms using the `fadeIn()` effect in **line 7**. 

# `fadeToggle()` effect
The **`fadeToggle()`** effect is a combination of `fadeIn()` and `fadeOut()`. It resembles the `toggle()` effect. Given a selector, if the matched elements are in a visible state, this effect fades out the elements from the webpage. Similarly, if the matched elements are hidden, the effect fades them in and the elements reappear on the webpage.

You can observe the behavior in this example. In the _"Toggle Fade"_ button event handler below, we toggle between fading out and fading in `div` elements using the `fadeToggle()` effect in **line 3**. 

Explore the fading effects in jQuery such as fadeOut(), fadeIn(), and fadeToggle() along with relevant examples. 

jQuery Basics

Events and Event Handlers

DOM Traversal and Manipulation

Effects and Animations

AJAX Methods

Conclusion

Fading Effects

`fadeOut()` effect

`fadeIn()` effect

`fadeToggle()` effect