Check

2022-11-27 00:30:40 +11:00 · 2022-11-27 00:30:40 +11:00 · 58ee2c39a6
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--- a/book/src/language-tour/check.md
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 # Check
+
+Check is faster than assert but has weaker guarantees.
+You can unpack (1-match) data in a check.
+
+```gleam
+check Some(x) = Option(Int)
+```