Built on Chrome’s V8 JavaScript engine, Node.js is a JavaScript runtime environment. Node.js is majorly used for building scalable and lightweight network-driven apps as it is an asynchronous event-driven JavaScript-based runtime. Mentioned below are some best practices that one should follow while using Node.js:

1. Divide your Solution by Components

One of the toughest things for larger applications is to take care of an enormous code base with plenty of dependencies. This slows down development and production while adding new features. Being consistent with Node.js best practices, we should always divide the whole codebase into smaller components in order that each module gets its own folder, and certain that every module is kept small and simple.

2. Layering Components

Layering is vital and thus each component is meant to possess ‘layers’. Following node.js best practices, these layers have a particular object which will be practiced on the logic, web and data access code. Through this, it can make a tidy division of performance issues and may significantly differentiate processes from test and mock codes.

3. Begin new project with npm init

Npm init will automatically create a package.json file for your project that displays all the packages/node app of npm install that has the understanding of your project.

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4. Wrap Common Utilities as npm Package

Larger project/app processes normally have similar code used frequently multiple times at distinctive locations. By combining them into one private package file and using that package at various places within our app can prove to be beneficial. Code duplication is eliminated by Npm install and it makes code more manageable.

5. Separate Express ‘app’ and ‘server’

The most common mistake that several developers commit in any project is to define the entire express application process on huge files. Rather than doing that, one should always divide the ‘Express’ definition into at least two different files.

6. Using Environment Aware, Secured and Hierarchical Configuration File

As a security best practice for Node.js, one should always keep the app-level keys simply readable from the environment and file variables. Also, one should always keep secrets outside the dedicated code and make a config file hierarchy for simple accessibility. An ideal and flawless configuration setup is required to satisfy all this. There are a few node.js development project structures that are available which will help to do this like for example nconf, config and rc.

7. Avoiding Garbage in-app

Node.js features a default limit of 1.5 GB Single CPU core as process manager but however, it uses a lethargic and greedy garbage defaulter. Node.js pauses until the memory usage is reached and gets recovered on its own.

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