Get the Number of CPU Cores in Node.js

The standard module os of Node.js provides a lot of operating system-related utilities. The os.cpus() method returns an array of objects containing information about each logical CPU core. To count the number of CPU cores, we can use:

os.cpus().length

Example:

import os from 'os'

// For CommonJS project, use:
// const os = require('os');

const coreNumber = os.cpus().length;

// Printing the number of CPU cores
console.log(coreNumber);        

My output (yours might be different from mine):

8

Further reading:

• Node.js: Executing a Piece of Code after a Delay
• 2 Ways to Set Default Time Zone in Node.js
• How to Delete a File or Directory in Node.js
• Node.js: Ways to Create a Directory If It Doesn’t Exist
• Node.js: How to Use “Import” and “Require” in the Same File
• Top best Node.js Open Source Headless CMS

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