npm install MODULE_NAME方法安装时,npm会根据这个module根目录下的package.json文件描述的dependency自动把这个module依赖的所有module下载下来放到本module自己的node_modules目录下。这样会有一个问题,就是产生的很多重复的module,例如connect和express都依赖qs,mime包,这些包在connect和express的node_modules目录都会存在。...
To install a different version of Node.js, you can use aPPA(personal package archive) maintained by NodeSource. These PPAs have more versions of Node.js available than the official Ubuntu repositories. Node.js v16 and v18 are available as of the time of writing. First, install the PPA to ...
To make your Node.js code pause, you can use the setTimeout function, which allows you to specify a callback function that will be executed after a certain amount of time passes. For example, you could use the following code to make your Node.js code pause for 5 seconds before executin...
Node.js:Node.js enables developers to execute JavaScript code outside of the web browser, thereby facilitating the creation of network applications that are scalable and high-performing. Its core functionality lies in providing an event-driven, non-blocking I/O model, which ensures the efficient h...
In our example, we are going to Download Node.js on Windows with the 32-bit setup files. Step 2)Run the installation Double click on the downloaded .msi file to start the installation. Click the Run button on the first screen to begin the installation. ...
$ node Welcome to Node.js v16.14.2. Type".help"formore information. > process.exitCode = 1; 1 > (Toexit, press Ctrl+C again or Ctrl+D ortype.exit) > process.exit(1) refs https://www.digitalocean.com/community/tutorials/how-to-use-the-node-js-repl ...
Node.js is a tool that helps computers run JavaScript outside of a web browser. With Node.js, developers can use JavaScript just like other programming languages, for example, to build apps, create servers, and manage data. To understand, think of it like this: ...
We are going to look at how to install node.js the easy way on Mac OS X, Windows and Linux. You don't need to download the node package and try to install it. No! We are going to do it the easy way using package managers. Once you have node installed you will be able to ...
While it is not syntactically required by JavaScript or Node.js to have the callback function as the last argument of the outer function, it is a common practice that makes callbacks easier to identify. It’s also common for JavaScript developers to use ananonymous functionas a callback. Ano...
After following the steps above to install Node.js and NPM on your Windows machine, you will be able to develop web apps in JavaScript using the Node.js runtime. With the installation of NPM, you'll also gain access to a large library of packages to aid in your development. Once you'...