Node.js os.freemem() Method

The os.freemem() method is an inbuilt application programming interface of the os module which is used to get the amount of free system memory. 

Syntax:

os.freemem()

Parameters: This method does not accept any parameters. 

Return Value: This method returns an integer value that specifies the amount of free system memory in bytes. 

Example 1: The below example illustrates the use of os.freemem() method in Node.js: 

Output:

4158910464

Example 2: The below example illustrates the use of os.freemem() method in Node.js: 

Output:

Free memory: 4GB 110MB 88KB and 0Bytes

Note: The above program will compile and run by using the node index.js command. 

Reference: https://nodejs.org/api/os.html#os_os_freemem