Node.js is a platform built on the Chrome JavaScript runtime.
Node.js is an event-driven I/O server-side JavaScript environment based on Google's V8 engine. The V8 engine executes Javascript very quickly and has very good performance.
Node.js connects to MongoDB syntax
MongoDB is a document-oriented database management system written in C.
Node.js connects to MongoDB example
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/runoob";
MongoClient.connect(url, function(err, db) {
if (err) throw err; console.log("数据库已创建!");
db.close();});