FilterStringSlice return a slices containing only the values of `values` matching the given predicate.

FindFirst Finds the first element into the passed in values where the predicate is true WARNING: passed in values are converted to an []interface{} slice and returned value will be an interface{}.

FindFirstString Finds the first element into the passed in values where the predicate is true Returns: -1 and empty string when not found, position and the string itself otherwise.

FirstNonEmpty Returns the first non-empty string between the passed in values.

FirstNonEmptyOrDefault Returns the first non-empty string between the passed in values.