20 lines
503 B
Text
20 lines
503 B
Text
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--| Tag each element of the list with its index
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let indexed
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: ∀(a : Type) → List a → List { index : Natural, value : a }
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= List/indexed
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let example0 =
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assert
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: indexed Bool [ True, False, True ]
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≡ [ { index = 0, value = True }
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, { index = 1, value = False }
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, { index = 2, value = True }
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]
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let example1 =
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assert
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: indexed Bool ([] : List Bool)
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≡ ([] : List { index : Natural, value : Bool })
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in indexed
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