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18. Guarding with asserts!

Short-circuit error returns.

1 min read2 questionsup to 50 XPtopic 18/50

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The `asserts!` expression evaluates a boolean. If `false`, it immediately exits the function, returning the provided error response.

clarity
(asserts! (is-eq tx-sender OWNER) (err u403))

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  1. 1. What does (asserts! condition error-value) do if condition is false?

  2. 2. What condition type does asserts! expect as first argument?

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