GLib.unichar_istitle

function unichar_istitle(c: String): Boolean {
    // Gjs wrapper for g_unichar_istitle()
}
  

Determines if a character is titlecase. Some characters in Unicode which are composites, such as the DZ digraph have three case variants instead of just two. The titlecase form is used at the beginning of a word where only the first letter is capitalized. The titlecase form of the DZ digraph is U+01F2 LATIN CAPITAL LETTTER D WITH SMALL LETTER Z.