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package maps
func Keys[Key comparable, Value any](m map[Key]Value) []Key {
keys := make([]Key, 0, len(m))
for key := range m {
keys = append(keys, key)
}
return keys
}
func Values[Key comparable, Value any](m map[Key]Value) []Value {
values := make([]Value, 0, len(m))
for _, value := range m {
values = append(values, value)
}
return values
}
func TransformValues[Key comparable, Value any, NewValue any](
m map[Key]Value, fn func(Value) NewValue,
) map[Key]NewValue {
output := make(map[Key]NewValue, len(m))
for key, value := range m {
output[key] = fn(value)
}
return output
}
func TransformKeys[Key comparable, Value any, NewKey comparable](m map[Key]Value, fn func(Key) NewKey) map[NewKey]Value {
output := make(map[NewKey]Value, len(m))
for key, value := range m {
output[fn(key)] = value
}
return output
}
func MapToSlice[Key comparable, Value any, Mapped any](m map[Key]Value, f func(Key, Value) Mapped) []Mapped {
output := make([]Mapped, 0, len(m))
for key, value := range m {
output = append(output, f(key, value))
}
return output
}
func Filter[Key comparable, Value any](m map[Key]Value, f func(Key, Value) bool) map[Key]Value {
output := map[Key]Value{}
for key, value := range m {
if f(key, value) {
output[key] = value
}
}
return output
}
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