1\ Nest is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built with TypeScript (preserves compatibility with pure JavaScript) and combines elements of OOP (Object Oriented Progamming), FP (Functional Programming), and FRP (Functional Reactive Programming).
Under the hood, Nest makes use of Express, allowing for easy use of the myriad third-party plugins which are available.
2\ Amazing ORM for TypeScript and JavaScript (ES7, ES6, ES5). Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms. http://typeorm.io
原文：http://www.cnblogs.com/hopesun/p/7655622.html