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How to check if a file exists in Node.

Understanding the differences between these methods is critical for efficient process management in Node.js. Syntax arrayName.forEach (function) Parameters function The function takes input for the method that will be executed. One can iterate over all the values of the array one-by-one using the forEach array loop. Each of these methods has its own unique characteristics and use cases. The forEach () method in Node.js is used for iterating over a set of given array items.

If you enjoy reading this article, you may also like the below articles: There are three primary ways to create a child process in Node.js: exec, fork, and spawn. I have added authentication, but I have no idea how to connect to the WebSocket and database for each user when the application starts. The application previously worked locally on a computer and only needed to connect to one database and one WebSocket. The simplest way of reading a file line by line in Node.js is by using the native fs module's fs.readFileSync() method: const fs = require ( 'fs' ) try ) Further Reading Each user has their own WebSocket and database. Install NodeJS on Ubuntu - Quick & Simple FS Module