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Learn Milo by running it
Try Milo in your browser! Milo has multiple backends — it builds native binaries, and also JavaScript to run right here in your browser.
Learn how it works — the emit-js backend →Lessons
Lesson 1 of 12
1. Immutable by default (let vs var)
A let binding is immutable; a var is mutable. You opt in to change.
values.milo
outputloading compiler…
// edit the code, then press Run
takeawayImmutable by default — you always know what can change out from under you.
0 / 12 runRun the program to unlock the next lesson