Return the part of a string before a specified substring.
Return the part of a string after a specified substring.
Replace the substring before the first occurrence of a specified search string.
Return the part of a string after the last occurrence of a specified substring.
Replace the substring before the last occurrence of a specified search string.
Replace the substring after the first occurrence of a specified search string.
Replace the substring after the last occurrence of a specified search string.
Slice a string based on grapheme cluster (i.e., user-perceived character) indices.