Explain the concept of child processes in Node.js.
Explain the concept of child processes in Node.js.
20729-Sep-2023
Updated on 03-Oct-2023
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Explain the concept of child processes in Node.js.
Aryan Kumar
03-Oct-2023In Node.js, child processes are a mechanism that allows you to create and manage additional processes or subprograms from your main Node.js process. These child processes run independently and can execute separate tasks or run external commands, which can be extremely useful for a variety of purposes, such as parallelism, scalability, and offloading CPU-intensive tasks. Here are some key concepts related to child processes in Node.js:
Creating Child Processes:
Communication:
Asynchronous Nature:
Use Cases:
Error Handling:
Resource Isolation:
Here's a basic example of creating and communicating with a child process using the spawn() method:
In this example, we spawn a child process to execute the ls command with the specified arguments. We capture its output and error streams and handle the events accordingly.
Child processes are a powerful feature in Node.js, enabling you to perform a wide range of tasks efficiently and securely. They are particularly valuable for building scalable and high-performance applications that can utilize multiple CPU cores and perform complex operations in parallel.