🔍 What is it?
- The
processobject is a global object in Node.js that provides information and control over the current Node.js process.
❓ How is it used?
- It is used to access various properties and methods related to the Node.js process, such as environment variables, command-line arguments, current working directory, process ID, and standard input/output streams.
Why is it needed?
- The
processobject is needed to interact with the Node.js runtime environment and manage various aspects of the process, such as configuration, communication with the operating system, and handling of input/output.
Examples:
- Accessing command-line arguments:
javascript
console.log(process.argv);
2. Accessing environment variables:
javascript
console.log(process.env.NODE_ENV);
3. Exiting the process:
javascript
process.exit(0);
4. Handling uncaught exceptions:
javascript
process.on('uncaughtException', (err) => {
console.error('Uncaught Exception:', err);
process.exit(1);
});