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Control Flow

Well done! Control flow is a fundamental concept in programming, and learning the basics will serve you wherever your path leads, regardless of language or domain. In review:

  • Control flow is the order in which instructions are executed.
  • Control structures alter control flow in a program. You learned three structures, each suited for a different scenario:
    • Conditional: “if some condition is met, then do X. Otherwise, do Y”.
    • Loop: “do something Z number of times” or “do something repeatedly until some condition is met”.
    • Exception: “do steps A, B, C. If an error occurs, stop, and do steps J, K, L”.


Make sure you’re comfortable with the above concepts before moving on!

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