Lesson 07 · 10 min
.gitignore
node_modules, .env and the build don't go into history. Ignore before add.
A .gitignore file in the root: patterns for what Git shouldn't see. node_modules/, .env, dist/. Ignoring won't remove something already committed: you need git rm --cached. Secrets stay in history until you clean them out separately — it's easier not to commit them.
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