Environment Is Node.js

Introduction

In this lab, we will explore the functionality of Node.js and learn how to determine if our code is running within a Node.js environment. By using the process global object, we can check if our code is being executed within a Node.js runtime environment and perform specific actions accordingly. This lab will provide hands-on experience with Node.js and deepen your understanding of its capabilities.

How to Determine if the Current Runtime Environment is Node.js

To determine if the current runtime environment is Node.js, follow these steps:

1. Open the Terminal/SSH.
2. Type node.
3. Use the process global object that provides information about the current Node.js process.
4. Check if process, process.versions, and process.versions.node are defined.

Here's the code to determine if the current runtime environment is Node.js:

const isNode = () =>
  typeof process !== "undefined" &&
  !!process.versions &&
  !!process.versions.node;

You can test the code by calling the isNode function:

isNode(); // true (Node)
isNode(); // false (browser)

Summary

Congratulations! You have completed the Environment Is Node.js lab. You can practice more labs in LabEx to improve your skills.