JSDoc: Source: variable_item.js

# Source: variable_item.js

    /*************************************************************
     *
     *  Copyright (c) 2015-2016 The MathJax Consortium
     *
     *  Licensed under the Apache License, Version 2.0 (the "License");
     *  you may not use this file except in compliance with the License.
     *  You may obtain a copy of the License at
     *
     *      http://www.apache.org/licenses/LICENSE-2.0
     *
     *  Unless required by applicable law or agreed to in writing, software
     *  distributed under the License is distributed on an "AS IS" BASIS,
     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     *  See the License for the specific language governing permissions and
     *  limitations under the License.
     */
    /**
     * @fileoverview Interface for menu items with variable attachment.
     *
     * @author v.sorge@mathjax.org (Volker Sorge)
     */
    /**
     * @interface
     */
    VariableItem = function() {}

    /**
         * Registers item with variable.
         */
    VariableItem.prototype.register = function() {};

    /**
         * Unregisters item from variable.
         */
    VariableItem.prototype.unregister = function() {};

    /**
         * Updates the item on variable change.
         */
    VariableItem.prototype.update = function() {};