node js mongodb example

suffix can be omitted; start with "/" with an absolute path to load, ". /"starts ".. /"starts ". /"indicates files under the same directory, The file suffix mentioned above can be omitted. The priority js file to be loaded by Nodejs is> json File> node File Create a custom Module Take a counter as an Example The Code is as follows: Var outputVal = 0; // outpu

instance is obtained, you can use net. Socket to do whatever you want. I listened to the data event to receive the data played by the server, and listened to the close event to exit the process. For specific API of net. Socket, refer to https://nodejs.org/api/net.html#net_class_net_socket.Running example There is a saying in the comments that the time is too late. Well, you can run it. Run "node echoServer

This article mainly introduces the understanding and analysis of node. js event monitoring and triggering, and compares node. js and jQuery's practical skills on event monitoring in the form of examples, which helps to deepen the understanding of node.

users to enter a name is displayed. When the user input is complete, click the Confirm button, we can use the value parameter of the confirm method to obtain the value of the user name input box. Other articles: Getting started with Node. js Development -- introducing UIBootstrap Getting started with Node. js devel

means that you need to think about how to build a specific application with these rest interfaces on top. Those back-end programmers don't worry about how specific data is delivered from one page to another, and they don't have to worry about whether user data updates are asynchronously acquired through Ajax or by refreshing the page.3, a large number of Ajax requestsFor example, the personalization application, each user sees the page is different,

has been learning node for some time, before the Great node. js, the basic understanding of some of the basic usage of node and some concepts, and then began to see the second node. JS Combat, the first chapter is to build a blog

This article mainly introduces Node. this article describes the features and application scenarios of js. js's asynchronous IO, event loop and callback functions, single-thread, cross-platform features, and then summarizes its use scenarios. For more information, see Node. js should be one of the hottest technologies t

Open the terminal and type node to enter the command interaction mode. You can enter a code statement and execute it immediately and display the result, for example: $ node> console.log('Hello World!');Hello World! If you want to run a large piece of code, you can write a JS file before running it. For

Node. js common module collection and node. js collection It collects some common modules in NodeJS development.MVC Framework-Express Express is a lightweight and flexible Nodejs Web application framework that can quickly build websites. The Express framework is built on the built-in Http module of Nodejs, And the Http

import it, as shown in the following code: The Code is as follows: Var module = require ('module _ name ') The above code imports a module named module_name, which may be a core module or a module installed with NPM. The require function returns an object containing all the public APIs of the module. The returned object may be any JavaScript value, a function, or an object that contains a series of attributes (functions, arrays, or any JavaScript Object. Export Module The CommonJS module syst