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World 3: Parallel Universes

The old way: git checkout

You will learn: to read old guides that use git checkout for branches.

The problem

An old guide says git checkout -b. Your friend says git switch -c. Who is right?

Watch

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Both are right! git checkout dark-mode works like git switch dark-mode. And git checkout -b works like git switch -c.

Try it

Build the old way to make fix-typo and hop onto it.

Tap the pieces in the right order.

…

Try it

You are on dark-mode. Go back to main, the old way.

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Check

Old git checkout did two jobs. Which new command does each job now?

Drag a card into a box. Or tap the card, then tap the box.

      Predict

      Git 3.0 is coming. Will it remove git checkout?

      You did it!

      You can now read old guides that use git checkout.

      Go deeper (optional)

      git checkout does two jobs: branches and files. That mix confused people. So Git 2.23 added git switch for branches and git restore for files. Careful: git checkout -- file throws away your changes, like git restore. Prefer the new commands. They say what they do.