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Add a native find() method to unique associative containers (e.g., Map) that returns the mapped value if the key exists, or an undefined Boxed_Value if not. This allows checking for key existence without mutating the container (unlike operator[]) or requiring exception handling (unlike at()). Co-authored-by: leftibot <leftibot@users.noreply.github.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
16 lines
319 B
ChaiScript
16 lines
319 B
ChaiScript
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auto m = ["k":"v"]
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// find existing key returns the value
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assert_equal("v", m.find("k"))
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// find missing key returns undef
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assert_true(m.find("missing").is_var_undef())
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// find does not mutate the map
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m.find("other")
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assert_equal(1, m.size())
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// find works with in-place map
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assert_equal("v", ["k":"v"].find("k"))
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