# Functions
Filter applies the provided filter function and removes all items from the slice for which the filter function returns true.
Has returns true if the needle is in the haystack (case-sensitive) Deprecated: use slices.Contains instead.
HasI returns true if the needle is in the haystack (case-insensitive).
Merge merges several string slices into one.
Reverse reverses the order of a string slice Deprecated: use slices.Reverse instead (changes semantics).
TrimEmptyFilter applies the strings.TrimFunc function and removes all empty strings Deprecated: use slices.DeleteFunc instead (changes semantics: the original slice is modified).
TrimSpaceEmptyFilter applies the strings.TrimSpace function and removes all empty strings Deprecated: use slices.DeleteFunc with strings.TrimSpace instead (changes semantics: the original slice is modified).
Unique returns the given string slice with unique values, preserving order.