62 lines
1.2 KiB
Markdown
62 lines
1.2 KiB
Markdown
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# Tuples
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Tuples contain a fixed number of values of any datatype. They are denoted with
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a hash and parenthesis.
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```misti
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val person = #("John", "Doe", 25)
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val result = #(true, 200)
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```
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## Signature
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```misti
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// A tuple of Str, Str and Int
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#(Str, Str, Int)
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// An array of tuples. These tuples have a Str, Int and Bool
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Array[#(Str, Int, Bool)]
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// A function that takes a Str and Int, and return a tuple of Str and Int
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(Str, Int) -> #(Str, Int)
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// A function that takes a tuple of Str and Int, and returns a Bool
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(#(Str, Int)) -> Bool
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```
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## Destructuring
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In variable declaration
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```misti
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val data = #("String", 322, true)
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val #(string, number, boolean) = data
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val #(string, _, _) = data
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```
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In function parameters
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```misti
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// Without parameter destructuring
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fun destructure(#(Str, Int) data) {
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val #(name, age) = data
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// Computations with name, age
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}
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// With parameter destructuring
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fun destructure(#(Str name, Int age)) {
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// Computations with name, age
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// Note that now there is no way to refer to the whole tuple
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}
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// Parameter destructuring with tuple preservation
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fun destructure(#(Str name, Int age) data) {
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// Computations with name, age
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// The tuple `data` can still be referred to
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}
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```
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