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This article focuses on the method of creating the first application for node. js, as well as the introduction of five different scenarios. So that everyone can learn something, learn this, and then let's come and see this article. First, let's try to create the first application: Before we create the first "Hello, world!" app for node.

Summarize some error types in Node. js and summarize the node. js types. Preface Multiple types of errors may occur in Node. js applications. For example, if a syntax error or runtime error occurs, a JavaScript error is triggered.

Quickly learn how to install and run the Node. js environment and the node. js Environment InstallerNodeJS provides some installation programs that can be downloaded and installed at nodejs.org. In Windows, select an installation file with the. msi suffix that matches the system version. In Mac OS X, select the install

This article focuses on. two key concepts of js: non-blocking IO and event loops are summarized appropriately. If you need them, you can refer to the following concepts to learn and use Node. javascript has been writing a web application and a RESTful web api using express and mongoose for two months. js official website homepage for

As Wikipedia says: "Node. js is a wrapper shell for the Google V8 engine, the LIBUV platform abstraction layer, and the core library that the subject uses Javscript to write. "Beyond that, it's worth noting that the goal of the author of node. js, Ryan Dar Ryan Dahl, is to create a site with real-time push capabilities

After you install node. js, choose a beneficial IDE for your development.After comparing multiple Ides, it is positioned on webstrom and sublime.There is a simple comparison:Webstorm feature is very rich, the front-end development tool of the synthesizer, compared to sublime slightly heavierSublime plug-in is also very rich, the interface is more beautiful, very light, also has a simple project management f

[Simple introduction to node. js] excerpt 2: simple introduction to node. jsChapter 2 module Mechanism 1. The purpose of the CommonJs specification is to allow JavaScript to run anywhere. 2. For a long time, JavaScript has the following defects: (1) No Module System (2) fewer standard databases (3) No standard interface (4) Lack of a package management system The

Analyzes the callback and code design modes in Node. js asynchronous programming, and node. js design modes The biggest selling point of NodeJS is the event mechanism and asynchronous IO, which is not transparent to developers. Developers need to write code in asynchronous mode to use this selling point, which has also

Node. js has quickly benefited from its event-driven and asynchronous features. This article will introduce 10 articles. It has been tested that it can greatly improve the skills of Node applications. Let's take a look at NodeJS one by one as a server-side JavaScript interpreter, which will change the concept of how the server works. It aims to help programmers b

Node. js for front-end pig and Node. js for pigFront-end pig flying traditional front-end pig most of the work is the page layout, rendering and animation effects, playing with is always a web shell, because there is no background support, this always makes front-end pig feel a little uncomfortable. The emergence of

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, implementation of routing functions, form uploa

This article mainly introduces the implementation of sleep function instances in nodejs. This article describes the development process and performance testing of the sleep function, for more information about node. JS, the most unpleasant thing is its single-threaded feature. Many things cannot be done. For CPU-intensive scenarios, the performance is not strong enough. For a long time, I wanted to seek som

Hypermedia is a technology that uses a non-linear mesh structure to organize and manage massive multimedia information (including text, images, and videos. The concept of hypermedia is similar to that of hypertext in the early days. The essence of hyper-media is to add links to the text content, which constitutes hyper-text. The same is true for hypermedia. Both hypermedia and hypertext are transmitted over HTTP, which means that hypermedia can be accepted by all browsers. MIME is used to descri

This article mainly introduces Node. js package details, Node. A js package is a directory that contains the package in JSON format. json, Node. the js package basically follows the CommonJS specification. For more information, se

Node. js has to say 12 points. node. js has to say 1. node. js: javascript on the server side. It allows javascript code to be run on the backend (out of the browser environment. 2. event-driven, asynchronous I/O programming mode

For other third-party modules installed through NPM (third-party modules) or local modules, each module exposes a public API. So that developers can import data. For example Copy codeThe Code is as follows:Var mod = require ('module _ name ') After this statement is executed, the Node will load the built-in module or the module installed through NPM. The require function returns an object. The API exposed by this object may be a function, object, or a

Node. js event-driven, node. js event Node. js event-driven implementation Overview Although the ECMAScript standard does not (and is not necessary) specify "Events", in the browser, Events Act as an extremely important mechanism,

Three Node. js code optimization methods you have not known, and three node. js codes are unknown. The running of Node. js programs may be limited by the CPU or input/output operations, but it is very slow. From the CPU perspectiv