node js curriculum

This article records the whole process of using node + express + ejs to create a simple page. It is really hard to say that express + ejs is really difficult, and there is a kind of sorrow ~ 1. Create the project folder my_ejs. 2. Use npm install express and npm install ejs Download these two guys. As for whether or not to set them to global, I am used to downloading them to the folder my_ejs in this project. Then create the corresponding file:

Node. js crawls bean data instance analysis, node. js instance analysis I have always thought that my vue is okay, and I have always thought that my webpack is okay. Today, when I visited node in MOOC, I found that I am still far away. As we all know, vue-cli is based on web

Node. js emitter. emit method instructions, node. js Use Cases Method description: When an event is triggered, several optional parameters are passed to the parameter table of the event listener. Syntax: Copy codeThe Code is as follows:Emitter. emit (event, [arg1], [arg2], [...]) Receiving parameters: Event Type Arg1 ~

The console. time Method in node. js is used in node. js scenarios. Method description: Start Time, which corresponds to console. timeEnd and records the time period. Syntax: Copy codeThe Code is as follows:Console. time (label) Receiving parameters: The Label corresponds to the label of console. log at the start

The console. timeEnd method in node. js is used in node. js scenarios. Method description: Completion time: the time spent between console. time and console. timeEnd. Syntax: Copy codeThe Code is as follows:Console. timeEnd (label) Receiving parameters: The Label corresponds to the label of console. log at the st

This article mainly introduces node. the js [superAgent] request usage example summarizes the post request, get request, delete request, and put request examples, and recommends them to you. Post request: The code is as follows: Request. post ('/api/pet '). End (function (resp, err ){If (resp. body. status === 200 ){Alert ('Yay got '+ JSON. stringify (res. body ));} Else {Return next (resp. body );}}

This article describes how to create a web calculator using node. js + express. For more information, see Environment: Host: WIN10 Express installation: 1. install express-generator Enter the following command: npm install -g express-generator 2. install express Enter the following command: npm install -g express 3. verify whether the installation is successful Enter the command: express-V View help: e

Node. js Data Encryption Transmission Analysis, node. js Data Encryption Preface For encrypted data transmission, there are several methods that people often use. One is ciphertext transmission, and the other is ciphertext transmission. The other is to encrypt data using keys and decrypt data using public keys, the tra

Node. js removes BOM headers in batches and node. js removes bom My colleagues wrote a tool, but there is a bug that after the file is replaced, the format of the original file is changed to utf8 BOM. XML with BOM may not be readable on Mac, therefore, you need to write a tool for processing. In fact, the idea is rela

This article mainly shares with you the node. js public platform development tutorial. If you are interested, please refer to it. How can nodejs be used to develop public platforms? Let's not talk about anything more. First, let's briefly introduce the basic principles of the public platform. The server is equivalent to a forwarding server. A terminal (such as a mobile phone or tablet) initiates a request

This article mainly introduces Node. how to Use the domain module in js exception handling. The memory leakage problems are mentioned at the end of this article. It is worth noting that if you need a friend, you can refer to the domain module provided by NodeJS, it can simplify Exception Handling for asynchronous code. Before introducing this module, we need to first understand the concept of "domain. Simpl

This article mainly introduces the implementation of multi-process by child_process in Node. js. For more information, see The code is as follows: Var http = require ('http ');Function fib (n ){If (n Return 1;} Else {Return fib (n-2) + fib (n-1 );}}Var server = http. createServer (function (req, res ){Var num = parseInt (req. url. substring (1), 10 );Res. writeHead (200 );Res. end (fib (num) + "\ n ");});

This article mainly introduces the node. js game sharing that allows multiple users to move their mouse online at the same time. This article provides the server and client code and running methods. For more information, see the recent project requirements, so I studied the websocket Implementation of nodejs, socket. io, which is a widely used framework of nodejs background applications websocket. Preparat

Socket. IO is a websocket library, including the client js and the server nodejs. Official Address: socket. io uses socket. io and nodejs to build a websocket Server Socket. io can not only build the websocket service of the client, but also support the websocket of the nodejs server. Next let me introduce how to install and configure nodejs. Go to http://nodejs.org/javasdownloadto download the msifile. Always click next to install. The final file is

Node. js code specification, node. js Code When calling a function, there is no space between the function name and the left parenthesis. There is no space between the function name and the parameter sequence. There is a space between all other syntax elements and the left parenthesis.Use the small hump naming method a

Node. js crawls Chinese webpage garbled issues and solutions, node. js Chinese webpage When Node. js captures a non-UTF-8 Chinese webpage, garbled characters may occur. For example, if Netease's homepage code is gb2312, garbled ch

This article mainly introduces how to easily create a node. js server (2): node. js server composition analysis. This article analyzes and summarizes the simple server code in section 1, for more information about the code, see the previous section: The http module that comes with the first line request (require)

Node. js Image Upload, node. js 1. node-formidable Components that help upload files 2. app. js Var formidable = require ('formidable'); var http = require ('http'); var sys = require ('sys '); http. createServer (function (requ

The difference between this and the previous one is that the address is not regular, you need to find the address of the next page and then crawl over to find.//======================================================//abaike Image Bulk download node. JS Crawler 1.00//November 9, 2017//======================================================//built-in HTTP modulevarHttp=require ("http");//built-in file processi

This article mainly introduces node in detail. key code for js port forwarding. If you are interested, refer to this article to share with you node. js port forwarding implementation code for your reference. The specific content is as follows: #!/sbin/node var net = requir