27 lines
493 B
Go
27 lines
493 B
Go
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package main
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func GetKeys(data map[string]int) []string {
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keys := make([]string, 0, len(data))
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for key := range data {
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keys = append(keys, key)
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}
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return keys
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}
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// any -> alias for interface{}
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// comparable -> constraint for != and ==
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func GetKeysGeneric[K comparable, V any](data map[K]V) []K {
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keys := make([]K, 0, len(data))
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for key := range data {
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keys = append(keys, key)
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}
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return keys
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}
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func main() {
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GetKeys(map[string]int{})
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GetKeysGeneric[int, int](map[int]int{})
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}
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