code: function queryCommandValue(command) {
          var func;
  
          if (editor.quirks.isHidden() || editor.removed) {
            return;
          }
  
          command = command.toLowerCase();
          if ((func = commands.value[command])) {
            return func(command);
          }
  
          // Browser commands
          try {
            return editor.getDoc().queryCommandValue(command);
          } catch (ex) {
            // Fails sometimes see bug: 1896577
          }
        }
docs: Queries the command value for example the current fontsize.
  
  @method queryCommandValue
  @param {String} command Command to check the value of.
  @return {Object} Command value of false if it's not found.