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Error handling · easy

15. defer, panic and recover

Cleanup and exceptional exits.

1 min read2 questionsup to 50 XPtopic 15/50

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`defer` schedules a call to run when the function returns, ideal for closing files and unlocking mutexes; deferred calls run last-in-first-out with arguments evaluated immediately. panic unwinds the stack and recover, only useful inside a deferred function, stops it — reserve both for truly exceptional cases.

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  1. 1. Deferred calls run in what order?

  2. 2. recover works only inside…

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