ExpressionShorts is a video tutorial series focusing on After Effects Expressions. There are lots helpful code snippets in this series along with a full breakdown as to how the code works. Each post contains a video tutorial and a text equivalent explanation.

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Loop

sampleImage() Part 1

sampleImage() Part 2

Auto Center a Layer Between Two Moving Layers

Attach 2d Layer to a 3d Layer

Auto Layer Offset 3d Part 1

Auto Layer Offset 3d Part 2

Swinging Motion – Math.sin() Part 1

Swinging Motion – Math.sin() Part 2

Trigger Event Based on Layer Speed

Wiggle Only One Direction

Numerical Readout

Random Words Cycle

Auto Fade Layer

Read External Text Document