What should you already know?
Before you start studying jQuery, you should have a basic knowledge of:
• HTML
• CSS
• JavaScript
WHAT IS JQUERY
jQuery is a lightweight, “write less, do more”, JavaScript library.
The purpose of jQuery is to make it much easier to use JavaScript on your website.
jQuery takes a lot of common tasks that require many lines of JavaScript code to accomplish, and wraps them into methods that you can call with a single line of code.
jQuery also simplifies a lot of the complicated things from JavaScript, like AJAX calls and DOM manipulation.
WHY JQUERY
There are lots of other JavaScript libraries out there, but jQuery is probably the most popular, and also the most extendable.
Many of the biggest companies on the Web use jQuery, such as:
• Google
• Microsoft
• IBM
Etc.
Do jQuery can be used in all browsers?
The answer is yes, the jQuery team had worked for it, so it works the same in all major browsers.
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