This article will tell you how to install Node JS and NPM(node package manager) on MacOS step by step. There are three ways to install it on mac, run the official installer, install node binary for macOS directly or use mac Homebrew package manager. We will introduce them all.
Node JS app execute in single thread. But if your machine has multiple cpu cores, it can also use multiple cpu cores use it’s cluster module. This can improve hardware usage efficiency. So you can make your Node JS app more scalable.
When you use Node JS to implement a http / https web server, you always follow the general steps as below. But if you close the terminal or kill the node process unexpectedly, the http web server will stop also. This article will tell you how to avoid such issue and make the node http …
This example will show you how to use node js to implement TCP socket client server communication. To achieve this you need to import node js built-in net module and use net.createServer method to create a net.Server object as TCP server, and use net.createConnection method to create a net.Socket object as TCP client.
There are a lot of webpages in the world are compressed during the transfer between web server and client browser, this can reduce the web page size and improve the transfer speed. And when web browser received the compressed web page, it will unzip it and render. But when you use Node js to crawl …
Node JS http module can be used to implement a http web server which waiting for client to request, it can also create a http client object which can send request to other http web server with query string or post data. This article will show you how to implement http web server, how to …
Node JS provide synchronous and asynchronous methods for read and write local files. When you use synchronous method, the execution thread will be blocked until the process complete, and you need to catch the exception by yourself in code. When you use asynchronous method, you need to provide a callback function as the second parameter, …
This example will show you how to convert JSON format string to JavaScript object and how to convert JS object back to JSON format string. It also show you how to write JSON string to a .json file and how to parse a json file content to a JavaScript object array.
This example will tell you how to create a custom Node JS module, how to publish it to the NPM central repository and how to import it as a library into your node application to use.
Node js fs.watch method is used to monitor a file change event such as write data to file, delete data from file. This example will show you how to use it to implement a data server that can monitor server side file data change and send changed data back to client browser.
