package collect

// IsEmptySlice 切片是否为空
func IsEmptySlice[T any](slice []T) bool {
	return slice == nil || len(slice) == 0
}

func IsNotEmptySlice[T any](slice []T) bool {
	return !IsEmptySlice(slice)
}

func IsEmptyMap[K comparable, V any](kvs map[K]V) bool {
	return kvs == nil || len(kvs) == 0
}

func Mapping[T any, M any](slice []T, mapping func(T) M) []M {
	m := make([]M, len(slice))
	for i, v := range slice {
		m[i] = mapping(v)
	}
	return m
}