12 lines
326 B
Crystal
12 lines
326 B
Crystal
> crystal i
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Crystal interpreter 1.15.1 [89944bf] (2025-02-04).
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EXPERIMENTAL SOFTWARE: if you find a bug, please consider opening an issue in
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https://github.com/crystal-lang/crystal/issues/new/
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icr:1> def f(s1, s2, sep)
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icr:2> s1 + sep + sep + s2
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icr:3> end
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=> nil
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icr:4> f "Rosetta", "Code", ":"
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=> "Rosetta::Code"
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icr:5>
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