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Systems Thinking > TypeScript as a design toolBranch
Phase 03TypeScript as a design tool166 of 434

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Narrow the union before the timer does it for you. Twenty rounds of control flow with the compiler watching.

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Reach the target commit graph with the shortest sequence of git commands.

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You should now be able to

  • Narrow unions quickly and without casts
  • Spot a non-exhaustive switch on sight
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