[socket.io](socket.io.md) [redis](redis.md) [mongodb](mongodb.md) [express](express.md) [mssql](mssql.md) [pm2](pm2.md) [qrcode](qrcode.md) [ua-parse-js](ua-parse-js.md) [cpr](cpr.md) [js-cookie](js-cookie.md) [whatwg-fetch](whatwg-fetch.md) [ora](ora.md) [shelljs](shelljs.md) [log4js](log4js.md)