How to learn expressions in AE

Question

What is the best way to learn how to use expressions? in After Effect

Dan Ebberts · Accepted Answer

It certainly helps to learn the core language parts of JavaScript (not the web page-specific stuff though). The expression language adds a lot of AE-specific extensions to the language, and you'll need to learn those as well.

Rick Gerard · Answer

Start simple. Use the Expression Language guide in the online documentation. Use the Search Help field in the upper right corner of AE to search for things like 'linear expression' or 'sample color' as you run into problems. Use the Expression Language menu in the timeline to build basic blocks of information and create your Java Math and Interpolation expressions. Pay attention to the text hints as you type in your expressions. Define and use variables. Spend some time with the User Guide, there are training videos on getting started with expressions.

If all else fails add part of your expression to the Source Text of a text layer so you can see what kind of values the code is generating.

Spend some serious time studying Dan's website http://motionscript.com

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