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Error Handling · medium

21. Unwrapping: unwrap! and unwrap-panic

Extracting inner values from optionals and responses.

1 min read2 questionsup to 50 XPtopic 21/50

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`unwrap!` extracts an inner value or returns an error. `unwrap-panic` terminates the transaction if `none` or `err` is encountered.

clarity
(let ((val (unwrap! (some u10) (err u404))))
  (ok val))

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Check your understanding

  1. 1. What does unwrap! do when given (none)?

  2. 2. What does unwrap-panic do on (err u1)?

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