Node.js process.getgroups() Method Last Updated : 28 Apr, 2025 Comments Improve Suggest changes Like Article Like Report The process.getgroups() method is an inbuilt application programming interface of the Process module which is used to get the supplementary group IDs. Syntax: process.getgroups() Parameters: This method does not accept any parameters. Return: It returns an integer array specifying supplementary group IDs. Note: This function will only work on POSIX platforms. Not available on windows or android platforms so will cause an error i.e. TypeError, getgroups is not a function. Below examples illustrate the use of process.getgroups() method in Node.js: Example 1: javascript // Allocating process module const process = require('process'); // Printing the supplementary group IDs. console.log(process.getgroups()); Output: [0] Example 2: javascript // Allocating process module const process = require('process'); // Checking whether the method exists or not if (process.getgroups) { // Printing getgroups() values console.log("The supplementary group IDs :" + process.getgroups()); } Output: The supplementary group IDs :[0] Reference: https://nodejs.org/api/process.html#process_process_getgroups Comment More infoAdvertise with us Next Article Node.js process.getuid() Method V vyer Follow Improve Article Tags : Web Technologies Node.js Node.js-process-module Similar Reads Node.js process.chdir() Method The process.chdir() method is an inbuilt application programming interface of the process module which is used to change the current working directory. Syntax: process.chdir( directory ) Parameters: This method accepts single parameter as mentioned above and described below: directory: It is require 2 min read Node.js process.cpuUsage() Method The process.cpuUsage() method is an inbuilt application programming interface of the Process module which is used to get the user, system CPU time usage of the current process. It is returned as an object with property user and system, values are in microseconds. Return values may differ from the ac 2 min read Node process.cwd() Method The process.cwd() method is an inbuilt application programming interface of the process module which is used to get the current working directory of the node.js process. Syntax:process.cwd()Parameters: This method does not accept any parameters. Return Value: This method returns a string specifying 2 min read Node.js process.getegid() Method The process.getegid() method is an inbuilt application programming interface of the process module which is used to get the numerical effective group identity of the Node.js process. Syntax: process.getegid() Parameters: This method does not accept any parameters. Return Value: It returns an object 2 min read Node.js process.geteuid() Method The process.geteuid() method is an inbuilt application programming interface of the process module which is used to get the numerical effective user identity of the Node.js process. Syntax: process.geteuid() Parameters: This method does not accept any parameters. Return Value: This method returns an 2 min read Node.js process.getgid() Method The process.getgid() method is an inbuilt application programming interface of the process module which is used to get the numerical group identity of the Node.js process. Syntax: process.getgid() Parameters: This method does not accept any parameters. Return Value: It returns an object specifying t 1 min read Node.js process.getgroups() Method The process.getgroups() method is an inbuilt application programming interface of the Process module which is used to get the supplementary group IDs. Syntax: process.getgroups() Parameters: This method does not accept any parameters. Return: It returns an integer array specifying supplementary gr 1 min read Node.js process.getuid() Method The process.getuid() method is an inbuilt application programming interface of the process module which is used to get the numerical user identity of the Node.js process. Syntax: process.getuid() Parameters: This method does not accept any parameters. Return Value: This method returns an integer val 1 min read Node.js process.hasUncaughtExceptionCaptureCallback() Method The process.hasUncaughtExceptionCaptureCallback() method is an inbuilt application programming interface of the process module which is used to get whether a callback has been set using process.setUncaughtExceptionCaptureCallback() method. Syntax:  process.hasUncaughtExceptionCaptureCallback() Para 2 min read Node.js process.setegid() Method The process.setegid() method is an inbuilt application programming interface of the process module which is used to set the numerical effective group identity of the Node.js process. Syntax: process.setegid(id) Parameters: This method accept single parameter as mentioned above and described below: i 2 min read Like