Elm Elm

Another Function Guarantee

This course has been updated! We now recommend you take the Introduction to Elm, v2 course.

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The "Another Function Guarantee" Lesson is part of the full, Elm course featured in this preview video. Here's what you'd learn in this lesson:

Elm functions do not perform side effects. Functions do not modify external state. Commands may modify external state. Tasks may also modify state.

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