node js chat application

Give full play to the performance of Node. js programs and give full play to node. js A Node. JS process only runs on a single physical core. This is because you need to pay special attention when developing scalable servers. Beca

Node. js is a Javascript runtime environment ). This article introduces you to the Getting Started tutorial on Node. js + Express configuration. It is recommended that you learn about Node. js as a Javascript runtime environment )

Getting started with Node. js + Express configuration, and getting started with node. js Node. js is a Javascript runtime environment ). In fact, it encapsulates the Google V8 engine. V8 cited worker to execute Javascript very qui

, we have to define it again: The Code is as follows: App. use (function (req, res, next ){Object. defineProperty (req, 'IP ',{Get: function () {return this. headers ['x-iisnode-REMOTE_ADDR '];}});Next ();}); This problem is finally solved, but this is not a good method. It would be too difficult if Express sets req. ip to read-only in the future. Continue the test and find another problem. Normally, the file upload function in the blog background uploads files to the public/upload directory,

This article mainly introduces how to use Node. js to implement content sharding in HTTP206. Node. js is a JavaScript framework for servers. For more information, see Introduction In this article, I will describe the basic concept of HTTP status 206, and use Node.

any of the following actions: The readable stream is not yet pipe to any flow, adjustable. Pause () paused The readable stream is already pipe to the stream, remove all data event subscriptions, and call the. Unpipe () method to remove the relationship to the downstream flow CalmnessIn conjunction with the asynchronous nature of the stream, I can write an application that directly bridges the output of user A to the page of User B:R

The following is a detailed tutorial on Node. js + Express configuration. I think it is quite good. Now I will share it with you and give you a reference. Let's take a look at Node. js as a Javascript runtime ). In fact, it encapsulates the Google V8 engine. V8 cited worker to execute Javascript very quickly and with v

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, modularize the method to export exports. If it

This article mainly introduces Node. for details about how to build a js barcode recognition program, refer to the following article. We will show you a very simple method to build a custom Node module, this module encapsulates the Dynamsoft Barcode Reader SDK and supports Windows, Linux, and OS X. At the same time, we will demonstrate how to integrate this modul

forms some of the most basic function interfaces we know, such as Create, Listen, Connect, Accept, Send, Read, and Write. TCP/IP is just a protocol stack. like the operating mechanism of the operating system, it must be implemented in detail and provide external operation interfaces. In fact, the TCP at the transport layer is based on the IP protocol at the network layer, while the HTTP protocol at the application layer is based on the TCP protocol a

)$/ig, maxAge: 60*60*24*365};exports.Compress = { match: /css|js|html/ig};exports.Welcome = { file: "index.html"}; Lists the types of various resources. You can set the Content-Type according to the extension. exports.types = { "css": "text/css", "gif": "image/gif", "html": "text/html", "ico": "image/x-icon", "jpeg": "image/jpeg", "jpg": "image/jpeg", "js": "text/javascript", "json": "

Node. js blog instance (7) Paging function, node. js Paging Original tutorial. Adds the paging function to the homepage and user pages of a blog. Set: up to 10 articles can be displayed on each page of the home page and user page.Here the skip and limit operations of mongodb are used.Open post.

This article mainly introduces how to use Node. js to implement content sharding in HTTP206. Node. js is a JavaScript framework for servers. For more information, see Introduction In this article, I will describe the basic concept of HTTP status 206, and use Node.

Detailed description of custom error types in Node. js and node. js Preface In general, few people will consider how to deal with the wrong policies generated by the application. In the debugging process, they simply useconsole.log(‘error')Locating errors is basically enough

This article describes how to use the Client Session in Node. js programming. It is the basic knowledge of Node. js beginners. If you need it, you can refer to the static website for easy extension. You only need to cache all the data and do not need to consider combining stateful content from different servers to user

and run the following code: slc ctl cpu-start 1.1.61023 When we think we have captured the lagging behavior, we can run the following code to stop the analyzer: slc ctl cpu-stop 1.1.61023 Run the following code to write a file to the hard disk: CPU profile written to `node.1.1.61023.cpuprofile`, load into Chrome Dev Tools Okay, that's it. You can load the file into Chrome for further analysis as in the V8 analyzer. Make the right decisionIn thi

Node. js solves the problem of obtaining the actual file type of images. The node. js file type A requirement: Assume that there is an image file with the actual type of jpg, and someone is lazy to copy a jpg file directly and save it as a png file with the same name, in this way, as3 will not encounter problems when r

This article describes how to implement routing in node. js. As the name suggests, routing means that we have different processing methods for different URLs. This article will teach you how to implement routing in node. js. to implement the routing function in js, you can r

This article mainly introduces Node. stream in js. This article describes what Stream, pipe method, Stream classification, and Readable Stream status switching. For more information, see What is stream? When it comes to stream, it involves the concept of * nix: pipeline-In * nix, the stream is implemented in Shell as data that can be bridge through | (pipeline operator, the output (stdout) of a process can

forms some of the most basic function interfaces we know, such as Create, Listen, Connect, Accept, Send, Read, and Write. TCP/IP is just a protocol stack. Like the operating mechanism of the operating system, it must be implemented in detail and provide external operation interfaces. In fact, the TCP at the transport layer is based on the IP protocol at the network layer, while the HTTP protocol at the application layer is based on the TCP protocol a