Gtk.TextBuffer.prototype.cut_clipboard

function cut_clipboard(clipboard:Gtk.Clipboard, default_editable:Boolean):void {
    // Gjs wrapper for gtk_text_buffer_cut_clipboard()
}

Copies the currently-selected text to a clipboard, then deletes said text if it's editable.

clipboard

the Gtk.Clipboard object to cut to

default_editable

default editability of the buffer