Remove the last character of a string.

Remove the first character of a string.

Remove the first UTF-16 code unit of a string.

Return the first UTF-16 code unit of a string.

Return the last Unicode code point of a string.

Return the first Unicode code point of a string.

Remove the last grapheme cluster (i.e., user-perceived character) of a string.

Reverse the grapheme clusters (i.e., user-perceived characters) of a string.

Reverse the Unicode code points of a string.

Return the last UTF-16 code unit of a string.

Return the last grapheme cluster (i.e., user-perceived character) of a string.

Return the last character(s) of a string.

Remove the last UTF-16 code unit of a string.

Check whether a number, english alphabet character or a date is between two others.

Return the first visual character(s) of a string.

Remove the last Unicode code point of a string.

Return the first grapheme cluster (i.e., user-perceived character) of a string.

Remove the first grapheme cluster (i.e., user-perceived character) of a string.

Remove the first Unicode code point of a string.

Truncate the middle UTF-16 code units of a string to return a string having a specified length.