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...
Browser Sniffing:Browser sniffing is also known as Browser Detection. In this process, whenever visitors come to the website from any browser, a code is executed to run the program that supports the particular browser. However, the code might not execute properly on different browsers. ...
const{exec}=require('node:child_process')// run the `ls` command using execexec('ls ./', (err,output) => {// once the command has completed, the callback function is calledif(err) {// log and return if we encounter an errorconsole.error("could not execute command: ",err)return...
Node.jsis aruntime environmentthat includes everything you need to execute aprogramwritten inJavaScript. It's used for runningscriptson servers to render content before it is delivered to aweb browser. NodePackageManager (NPM) is anapplication managerandrepositoryfor developing and sharing JavaScript...
Step 2: Execute your tests with the below command node --inspect-brk ./node_modules/jest/bin/jest.js --runInBand ./tests/demo.console.test.js Note: ./test/demo.test.js is your puppeteer test file name. Step 3: Once you Enter the above command navigate to chrome://inspect in your...
nodebadLoop.js Copy The terminal will show this output: Output NaN NaNin JavaScript meansNot a Number. Given that all the input are valid numbers, this is unexpected behavior. To find the error, let’s use the Node.js debugger to see what happens to the two variables that ...
How to execute a shell command using Node.js Here’s how I ran a shell command from a Node.js script.First I imported child from child_process:import * as child from 'node:child_process' //or const child = require('node:child_process')Then you can call child.exec() like this:...
1. execute the following curl command for setup. curl -sL https://deb.nodesource.com/setup | sudo bash - 2. Install using apt-get sudo apt-get install -y nodejsroot@devopscube:~# sudo apt-get install -y nodejs . . .update-alternatives: using /usr/bin/rlwrap to provide /usr/bin...
The power of Node.js lies in its capability of processing multiple concurrent requests to and from the web server (I/O). It accomplishes this through executing all requests on a singular thread, thereby facilitating thousands of simultaneous connections. This feature enables Node.js to offer incr...
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