tinymce.full.js
function () {
          data = [];
          index = 0;
          self.typing = false;
          self.data = data;
          editor.fire('ClearUndos');
        }
function () {
          data = [];
          index = 0;
          self.typing = false;
          self.data = data;
          editor.fire('ClearUndos');
        }
function ( ) { data = [ ] ; index = 0 ; self . typing = false ; self . data = data ; editor . fire ( 'ClearUndos' ) ; }
Removes all undo levels.

@method clear
Removes all undo levels .