Uploaded July 2014 | Updated September 2026, 1 week ago

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This changes EVERYTHING! The fact that Javascript is event-driven is the reason for closures, weird scoping/context, and the myriad of callbacks you see everywhere.

Programmers who are new to Javascript - especially Node.js - are often thrown for a loop by the event-driven nature of JS.

The bottom line is: Javascript isn't built for making a page, it's built for a user-interface. It listens for user interaction and responds accordingly. And when that response happens, it doesn't run any unnecessary code...just the code to respond to the user.

Watch the full playlist:
youtube.com/playlist?list=PLoYCgNOIyGABI011EYc-avPOsk1YsMUe_

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Also watch: "Responsive Design Tutorial - Tips for making web sites look great on any device"
youtube.com/watch?v=fgOO9YUFlGI
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