GLib.utf8_prev_char

function utf8_prev_char(p: String): String {
    // Gjs wrapper for g_utf8_prev_char()
}
  

Finds the previous UTF-8 character in the string before p.

p does not have to be at the beginning of a UTF-8 character. No check is made to see if the character found is actually valid other than it starts with an appropriate byte. If p might be the first character of the string, you must use GLib.utf8_find_prev_char instead.