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  3. Node.js — Check if Running on 64bit or 32bit Platform

Node.js — Check if Running on 64bit or 32bit Platform

Node.js runs on different architectures. You can use it on all common operating systems, like Windows, Linux, and macOS. You can also use it on 32-bit and 64-bit machines. This tutorial shows you how to detect whether you’re running in a 32 or 64-bit system.

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  5. Retrieve a Request’s IP Address in Node.js
  6. Detect the Node.js Version in a Running Process or App
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  8. How to Check if a Value is a String in JavaScript or Node.js
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  10. Check if a Value is a String in JavaScript and Node.js
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  20. Get the Part After First Occurrence in a String in JavaScript or Node.js
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  22. Get the Part Before Last Occurrence in a String in JavaScript or Node.js
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  26. Append Characters or Words to a String in JavaScript or Node.js
  27. Check if a String is Empty in JavaScript or Node.js
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  2. Strict Type for Request Headers with TypeScript
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  3. Calculate a SHA256 Hash
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Detect If the Node.js Process Runs on a 64bit or 32bit System

Node.js comes with a built-in os module. This os module provides utility related to the operating system. You can access the system’s architecture using the os.arch() method. This returns the operating system’s CPU architecture on which Node.js is running. You may use this method to determine whether it’s running on a 32 or 64 bit CPU:

import Os from 'os'

/**
 * Determine whether the current platform is 64 bit.
 *
 * @returns {Boolean}
 */
function is64Bit() {  
  return ['arm64', 'ppc64', 'x64', 's390x'].includes(Os.arch())
}


is64Bit()  
// true 
// (for example, when running on an Intel Mac x64)

At the time of writing this tutorial, the following list of strings describes the return values of Os.arch():

  • arm
  • arm64
  • ia32
  • mips
  • mipsel
  • ppc
  • ppc64
  • s390
  • s390x
  • x32
  • x64

That’s it!

Mentioned Resources

Marcus Pöhls

Marcus is a fullstack JS developer. He’s passionate about the hapi framework for Node.js and loves to build web apps and APIs. Creator of Futureflix and the “learn hapi” learning path.

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