# jQuery FAQs

- ## What is jQuery?

  jQuery is a library of the JavaScript functions that you're most likely to need as you develop websites.

- ## Why is jQuery becoming so popular?

  Three reasons: It's free; It lets you get more done in less time; All of its functions are cross-browser compatible.

- ## Which is harder to learn: jQuery or JavaScript?

  For most functions, jQuery is significantly easier to learn and use than JavaScript. But remember that jQuery is JavaScript.