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Preferred title in entries & unused fields in contents
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@@ -1,5 +1,6 @@
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package datatypes
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// INFO: use this if your key is unique
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func MakeMap[T any, U comparable](data []T, f func(T) U) map[U]T {
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m := make(map[U]T)
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for _, v := range data {
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@@ -7,3 +8,12 @@ func MakeMap[T any, U comparable](data []T, f func(T) U) map[U]T {
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}
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return m
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}
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// INFO: use this if your key is not unique
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func MakeMultiMap[T any, U comparable](data []T, f func(T) U) map[U][]T {
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m := make(map[U][]T)
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for _, v := range data {
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m[f(v)] = append(m[f(v)], v)
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}
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return m
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}
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