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var h = {1: "abc", "1": 789}
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# may assign with existing or non-existing hash key (if hash is mutable)
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h[7] = 49
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writeln h[1]
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writeln h[7]
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writeln h["1"]
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# using an alternate value in case of invalid index; prevents exception
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writeln h[1; 42]
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writeln h[2; 42]
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