cesiumDemo/Source/Core/getAbsoluteUri.js

import Uri from '../ThirdParty/Uri.js';
import defaultValue from './defaultValue.js';
import defined from './defined.js';
import DeveloperError from './DeveloperError.js';

    /**
     * Given a relative Uri and a base Uri, returns the absolute Uri of the relative Uri.
     * @exports getAbsoluteUri
     *
     * @param {String} relative The relative Uri.
     * @param {String} [base] The base Uri.
     * @returns {String} The absolute Uri of the given relative Uri.
     *
     * @example
     * //absolute Uri will be "https://test.com/awesome.png";
     * var absoluteUri = Cesium.getAbsoluteUri('awesome.png', 'https://test.com');
     */
    function getAbsoluteUri(relative, base) {
        var documentObject;
        if (typeof document !== 'undefined') {
            documentObject = document;
        }

        return getAbsoluteUri._implementation(relative, base, documentObject);
    }

    getAbsoluteUri._implementation = function(relative, base, documentObject) {
        //>>includeStart('debug', pragmas.debug);
        if (!defined(relative)) {
            throw new DeveloperError('relative uri is required.');
        }
        //>>includeEnd('debug');

        if (!defined(base)) {
            if (typeof documentObject === 'undefined') {
                return relative;
            }
            base = defaultValue(documentObject.baseURI, documentObject.location.href);
        }

        var baseUri = new Uri(base);
        var relativeUri = new Uri(relative);
        return relativeUri.resolve(baseUri).toString();
    };
export default getAbsoluteUri;