func Filter(values []string, filter func(string) bool) (ret []string)
Filter applies the provided filter function and removes all items from the slice for which the filter function returns true. This function uses append and might cause
func Has(haystack []string, needle string) bool
Has returns true if the needle is in the haystack (case-sensitive)
func HasI(haystack []string, needle string) bool
HasI returns true if the needle is in the haystack (case-insensitive)
func Merge(parts ...[]string) []string
func TrimEmptyFilter(values []string, trim func(rune) bool) (ret []string)
TrimEmptyFilter applies the strings.TrimFunc function and removes all empty strings
func TrimSpaceEmptyFilter(values []string) []string
TrimSpaceEmptyFilter applies the strings.TrimSpace function and removes all empty strings
func Unique(i []string) []string