what node js is good for

Node. js is a simple example of checking whether a port is occupied. node. jsport Preface In network technology, a Port has two meanings: one is a physical Port, for example, ADSL Modem, Hub, switch, router

front-end of the user response method, and most of the server logic is RPC or cyclic; In distributed and SMP architectures, gevent multi-process + coroutine + simple language features + easy C/C ++ performance expansion is definitely an ideal choice. The Node. js framework express should be similar to the Python frame

. Differences in Performance I don't think a lot of people's systems are more complicated than PayPal. PayPal is now full Nodejs (background bi may be Java) However, prototype mode is difficult to build large code Transform into OO programming difficulty and write Python no difference Callback is not a problem I don't use those callback

In Linux, node. js is used to extract the content of Word (doc/docx) and PDF text, and node. jsdocx Preface To create a full-text search engine, you need to extract documents such as word/pdf. There are some open source solutions such as xpdf for pdf. However, Word documents are more complex. Extract PDF text XPDF

URL is now fully supported by the node. JS APInode. js 8 What to do nextThe node. JS 8 Release excites us because it contains a lot of interesting improvements, such as the Async Hooks

The http. get method in node. js is described as follows: node. jshttp. get Method description: Most requests do not contain GET requests of the Request body. Node. js provides a simpler method for requests. The difference between

In node. js (express), Jcrop is used to cut and upload images. node. jsjcrop Requirements To put it simply, you need to upload an avatar and save the cropped parts as the Avatar. Step 1: select the image: Step 2: Display and crop in the pop-up window: Step 3: click "save" to upload the file to the server. Implementat

The http. request Method in node. js is described in node. jsrequest. Method description: The function room acts as a client to initiate a request to the HTTP server. Syntax: Copy codeThe Code is as follows:Http. get (options, callback) Because this method belongs to the htt

The http. response. end method in node. js is described in node. jshttp. get. Method description: End the response and tell the client that all messages have been sent. When all the content to be returned is sent, the function must be called once. If you do not call this fun

The querystring. parse method in node. js is described in node. jsurl. parse. Method description: Converts a string to an object. To put it bluntly, the parameter string on the url is converted into an array object. (See the example) Syntax: Copy codeThe Code

What is node. js? Return the server-side JavaScript? In this articleArticleIf you do not want to explain it, you can search and find out that server-side JS is not a new technology, but a recent

The http. response. write method in node. js is described in node. jshttp. get. Method description: Sends the response content to the requested client. Before response. end (), response. write () can be executed multiple times. Syntax: Copy codeThe Code is as follows:Re

The http. request. end method in node. js is described in node. jsrequest. Method description: Send the request. If any part of the Request body is not sent, it will be refreshed to the stream. If the data value is specified,

The use of the console. dir method in node. js is described as follows: node. jsconsole. dir Method description: Pass obj as a parameter to util. inspect and execute the command to print the returned result to stdout. This function ignores any custom inspect () function objects. Syntax: Copy codeThe Code

The url. format method in node. js is described as follows: node. jsurl. format Method description: Convert a parsed URL object into a formatted URL string. Syntax: Copy codeThe Code is as follows:Url. format (urlObj) Receiving parameters: UrlObj indicates a URL object and c

The url. resolve Method in node. js is described in node. jsurl. resolve. Method description: Insert or replace the original tag for the URL or href. (You can see the example if you don't understand it) Syntax: Copy codeThe Code is as follows:Url. resolve (from,) Because thi

constructors, for example, if I create a function and then use a variable to new The function, then the new function inherits the property of the created function, and then if I access a property of this function from new, But I did not define this variable in the new function, and then it looked up (to the function that created it), and the process of finding it was called the prototype chain.Object ==> Constructor 1 ==> Constructor 2As with inheritance in CSS, the style of the parent element

Translator Press: OReilly recently a booklet "What is Node?", a brief explanation of Node's life and the application of the scene, the author easy and smooth, full content, is very rare learning materials. Translate it out and share it with us ~ Full text: http://jayli.github.com/whatisnode/index.htmlAuthor: Brett

points out, if committee members voted in favour of allowing developers to continue working on the project, the code of conduct does not appear to be executing.And now, due to the lack of execution of the code of conduct, not only has the bifurcation of node. js been created, but a member of the node. JS Committee res

node. JS First Day notes (V1)One: Where does node. js come from?In the fall of 2008, a young man named Ryan Dahl (Roy Darnay) had been playing for several years server programming, the bottleneck of server high concurrency performance became more and more difficult to overcome. Whether you're good at Ruby on Rails or t