Learn JQUERY with Real Code Examples

jQuery simplifies DOM querying and manipulation using a clean selector engine.

It abstracts cross-browser inconsistencies to provide a uniform experience.

Its utilities and plugins make it ideal for enriching older or simpler websites.

DOM manipulation

Event handling

Effects and animations

AJAX abstraction

Cross-browser compatibility

Selectors using `$()`

DOM manipulation: `.html()`, `.text()`, `.css()`

Event binding: `.on()`

AJAX: `.ajax()`, `.get()`, `.post()`

Effects: `.fadeIn()`, `.slideToggle()`

index.html - main page

js/app.js - jQuery scripts

css/styles.css - optional styling

plugins/ - plugin scripts

assets/ - images and resources

Load jQuery via CDN or local file

Wrap code in `$(document).ready()`

Select elements and manipulate them

Bind events to create interactivity

Use plugins or your own utilities

Beginner: Selectors and events

Intermediate: AJAX & animations

Advanced: Custom plugins

Expert: Complex UI widgets

Community: jQuery plugin contributions

Simpler than React or Vue for small tasks

Better for legacy support than modern frameworks

More imperative than Vue/Svelte

More readable DOM handling than pure vanilla for beginners

Less scalable than component-based frameworks

2006 – jQuery 1.0 released

2010 – jQuery 1.4 (major rewrite)

2013 – jQuery 2.x (removed old browser support)

2016 – jQuery 3.x released

2025 – Still widely used in enterprise & CMS

Selector: CSS-inspired element query

Chainable Methods: Execute functions consecutively

Event Delegation: Handling events on dynamic elements

Plugin: Reusable jQuery functionality

Deferred: Promise-like async handling