JavaScript
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Lets say you've got a little library like this, that just increments a number: However, people using this library are able to do jspy.count = 5 to manually adjust the value. Lets say for the purpose of this tutorial, that users should not be able to do that. In other languages you'd be able to define a private variable, but JavaScript doesn't explcitly have them.
The JavaScript Module Pattern | Blog :: The JavaScript Playground
It is very often that I have to do video motion tracking for interactive video campaign in my daily work. If I’m used used to do that in Flash, I made a quick experiment to do the same in javascript. Thanks to Olof Storm who made me a perfect corner pin motion tracking in After Effects, and I’ve been using some code from Steven Wittens to draw an image in perspective. Click here to see the motion tracking demo (give it a bit of time to fully load).
Javascript motion tracking | Soundstep