cesiumDemo/Source/Workers/defaultValue-f2e68450.js

/* This file is automatically rebuilt by the Cesium build process. */
define(['exports', './freezeObject-2d83f591'], function (exports, freezeObject) { 'use strict';

    /**
         * Returns the first parameter if not undefined, otherwise the second parameter.
         * Useful for setting a default value for a parameter.
         *
         * @exports defaultValue
         *
         * @param {*} a
         * @param {*} b
         * @returns {*} Returns the first parameter if not undefined, otherwise the second parameter.
         *
         * @example
         * param = Cesium.defaultValue(param, 'default');
         */
        function defaultValue(a, b) {
            if (a !== undefined && a !== null) {
                return a;
            }
            return b;
        }

        /**
         * A frozen empty object that can be used as the default value for options passed as
         * an object literal.
         * @type {Object}
         */
        defaultValue.EMPTY_OBJECT = freezeObject.freezeObject({});

    exports.defaultValue = defaultValue;

});