node js learning curve

Node. js module mechanism learning notes, node. js learning notes Javascript has never been used as a programming language since its birth. In the Web 1.0 era, this scripting language is mainly used for Form Verification and webpa

Node. js asynchronous I/O learning notes, node. js learning notes The term "Asynchronous" is widely used in the Web 2.0 wave, which swept the Web along with Javascript and AJAX. Asynchronous programming is rare in most advanced pr

My path to Node. js Learning (1) and the path to node. js Learning 1. Introduction to node. jsI have a lot of information on the Internet. 1. What is

This is a special Node. js learning note for beginners. This note will show you how to Start Node. js step by step. 1. Introduction to node. js I have a lot of information on the Inte

This article mainly introduces Node. module mechanism learning notes in js. This article describes CommonJS module specifications, Node module implementation process, module call stack, packages, and NPM. For more information, see Javascript, no one once considered it a programming language. In the Web 1.0 era, this sc

My Node. js learning path (4) -- unit test and node. js unit test NPM installation: Npm install nodeunit-g Supports command line and browser running. Various assertions. In node. js, mo

represents the synchronous execution of the read file operation, which blocks the main process so that the main process can continue after the file is read, and the result is as followsG:\nodejs>node Server.jsi'm file.txtoverNon-blocking codevar fs = require ("FS"); Fs.readfile (thefunction (err, data) {if return console.error (err); Console.log (Data.tostring ());}); Console.log ("over");　Note: The error function prints incorrect informatio

Node. js Learning (2)-routing function and form upload, node. js form Today. getting started with js this book has learned some basic knowledge about node, including server creation, im

[Node. js learning] -- (1) -- HelloWord, node. js -- helloword Today, I practiced an entry-level case of nodejs, which is very lightweight and fast! Official Website Http://nodejs.org/download/ Download Windows 7 64-bit download msi installation package: Http://nodej

instruction to load the HTTP module and assign the instantiated HTTP value to the variable httpvar http = require ("http");Creating a serverNext we use the Http.createserver () method to create the server and bind port 8888 using the Listen method, which receives and responds to data through the request and response parameters.Examples are as follows:　　//introducing the required modulevarHTTP = require (' http '); Http.createserver (function(Request, response) {//Send HTTP Header //HTTP stat

What is node. js?Nodejs is a JavaScript toolkit for writing high-performance Web servers (for JS development service-side programs)Single-threaded, asynchronous, event-drivenFeatures: fast, memory-consumingA millions concurrency test on the web, which consumes 16G of memory without optimization, is due to the asynchronous processing of events after single-threade

// Package1 2 var Package2 = require (". /package2 " 3 console.log ("Name:" + package2.getname ()); 1 // Package2 2 var name = "Lyjn"; 3 4 /* Todo:exports Set a GetName method to get the name */ 5 function () {6 return name; 7 };Fully OK2. Knowledge points in node only module scope, no global scope require the main role1.加载模块并执行模块中的代码;2.返回exports对象;Exports object1.所有模块都有一个exports对象，默认值是一个空对象`{}`;2.可以给exports对象添加属性;Little Tricks1.require

This article mainly introduces node. js mongodb Operations Learning summary, this article provides mongodb to create a database, insert data, connect to the mongodb database and query data and other code instances, friends can refer to the next, preparation 1. Create a table to be read in mongodb Create a database named Test The Code is as follows: Use extensio

This article mainly introduces the amazing node. js reading notes node's Learning Summary. if you need a friend, you can refer to the project you will be doing this week (it should be said that this is the case all the time). let's make a conclusion based on different situations ~ This record is a summary of node

; optionvalue="">Five-Equal prizeoption> optionvalue="">Six prizeoption> optionvalue="">Seven-Equal prizeoption> optionvalue="">Eight prizeoption> optionvalue="">Ninth Prizeoption>Select>inputtype= "button"value= "Lottery"ID= "BTN"/>Script> varsel=document.getElementById ("sel"); varOptions=Sel.children; varbtn=document.getElementById ("btn"); Btn.onclick=function(){ varIndex=Math.floor (Math.random ()*options.length); Options[index].selected=true; }Script>In the DOM, att

installation.After successful installation, in command prompt input:node-v View the installation version, the output version is installed successfully About NPM Node pageaged Modules https://npmjs.org/(NPM) is included in Windows node. JS installation package installation. This node.

Base64 encoding and decoding for node. js learning, and node. jsbase64 Encoding I. Base64 encoding Origin Why is Base64 encoded? Because some network transmission channels do not support all bytes, for example, traditional mail only supports transmission of visible characters, control characters like ASCII codes cannot

To search for the node encapsulation module:At the command prompt, use:NPM Search search_string> command searches the module in the node package registry.For example:NPM Search OpenSSLTo install the Node encapsulation module:At the command prompt, use:NPM Install For example:NPM Install ExpressThe output from the NPM Install command shows the HTTP request to down

[Node. js learning] -- (7) -- install Mongodb and node. jsmongodb Download and install mongodb Reference: mongodb official website http://www.mongodb.org/ Download mongodb-win32-x86_64-2008plus-ssl-3.0.0-signed, msi Knowledge: view the number of digits in the system wmic os get osarchitecture Install Reference: Off

Node. js learning summary on mongodb operations, node. jsmongodb I. Preparations 1. Create a table to be read in mongodb Create a database named TestCopy codeThe Code is as follows:Use extension test;Insert data to the user tableCopy codeThe Code is as follows:Db. user. insert ({Name: 'flyoung ',Age: '18 ',Sex: true});