Named parameters: Difference between revisions
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whatever bar:=1, baz:=2, foo:=-1, qux:="Why is ev'rybody always pickin' on me?" |
whatever bar:=1, baz:=2, foo:=-1, qux:="Why is ev'rybody always pickin' on me?" |
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End Sub</syntaxhighlight> |
End Sub</syntaxhighlight> |
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=={{header|V (Vlang)}}== |
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1) Vlang allows for struct a literal to be passed to the function, instead of named parameters. |
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2) Using this style, fields need not appear in the same order as they are declared |
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3) If one or more are omitted, their default values will be used instead. |
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4) The named parameter feature was deliberately omitted, for greater code readability. |
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5) Depending on the situation, variadic and/or sum types can also be considered. |
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<syntaxhighlight lang="Zig"> |
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struct Params { |
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a int |
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b int |
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c int |
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} |
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fn a_fn(p Params) int { |
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return p.a + p.b + p.c |
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} |
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fn main() { |
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x := a_fn(Params{a: 1, b: 2, c: 3}) // same order |
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println("x = ${x}") |
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y := a_fn(Params{c: 3, b: 2, a: 1}) // different order |
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println("y = ${y}") |
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z := a_fn(Params{c: 2}) // only one field |
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println("z = ${z}") |
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} |
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</syntaxhighlight> |
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{{out}} |
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<pre> |
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x = 6 |
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y = 6 |
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z = 2 |
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</pre> |
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=={{header|Wren}}== |
=={{header|Wren}}== |