Let’s explore the main topics you’ll encounter in W3 jQuery lessons:

1. jQuery Selectors

Selectors are the core of jQuery. They help you select and manipulate HTML elements effortlessly.

Example: $(document).ready(function(){
$(“p”).click(function(){
$(this).hide();
});
});

This snippet hides any paragraph you click on. You can experiment with more selectors directly using W3’s live editor.

2. jQuery Events

jQuery simplifies handling events like mouse clicks, key presses, and page loads.

Example: $(button”).click(function(){
alert(“Button clicked!”);
});

This makes your website interactive without writing long JavaScript functions.

3. jQuery Effects

From hiding and showing elements to sliding and fading, jQuery effects are easy to use and widely covered on W3Schools.

Popular effects include:

• hide()

• show()

• fadeIn()

• fadeOut()

• slideUp()

• slideDown()

4. jQuery DOM Manipulation

Manipulating the structure and content of HTML elements is one of jQuery’s strongest features.

Example: $(#changeText”).click(function() {
$(“#text”).text(“Content updated via jQuery!”);
});

5. jQuery AJAX

AJAX is essential for modern web applications. jQuery makes it easier to load data asynchronously without reloading the page.

Example: $(#loadData”).click(function(){
$(“#dataContainer”).load(“data.html”);
});