dc-sdk/libs/cesium/Source/Core/isDataUri.js

import Check from './Check.js';

    var dataUriRegex = /^data:/i;

    /**
     * Determines if the specified uri is a data uri.
     *
     * @exports isDataUri
     *
     * @param {String} uri The uri to test.
     * @returns {Boolean} true when the uri is a data uri; otherwise, false.
     *
     * @private
     */
    function isDataUri(uri) {
        //>>includeStart('debug', pragmas.debug);
        Check.typeOf.string('uri', uri);
        //>>includeEnd('debug');

        return dataUriRegex.test(uri);
    }
export default isDataUri;