class Utils { /** * Get first matched item for a string * @param {RegExp} regexp * @param {String} ua * @return {Array|{index: number, input: string}|*|boolean|string} */ static getFirstMatch(regexp, ua) { const match = ua.match(regexp); return (match && match.length > 0 && match[1]) || ''; } /** * Get second matched item for a string * @param regexp * @param {String} ua * @return {Array|{index: number, input: string}|*|boolean|string} */ static getSecondMatch(regexp, ua) { const match = ua.match(regexp); return (match && match.length > 1 && match[2]) || ''; } } module.exports = Utils;