Node.js os.uptime() Method
The os.uptime() method is an inbuilt application programming interface of the os module which is used to get system uptime in seconds.
Syntax:
os.uptime()
Parameters: This method does not accept any parameters.
Return Value: This method returns an integer value that specifies the number of seconds the system is running i.e. system uptime.
Example 1: The below example illustrates the use of os.uptime() method in Node.js:
javascript
// Node.js program to demonstrate the // os.uptime() method // Allocating os module const os = require( 'os' ); // Printing os.uptime() value console.log(String(os.uptime()) + " Seconds" ); |
Output:
4507 Seconds
Example 2: The below example illustrates the use of os.uptime() method in Node.js:
javascript
// Node.js program to demonstrate the // os.uptime() method // Allocating os module const os = require( 'os' ); // Printing os.uptime() value let ut_sec = os.uptime(); let ut_min = ut_sec / 60; let ut_hour = ut_min / 60; ut_sec = Math.floor(ut_sec); ut_min = Math.floor(ut_min); ut_hour = Math.floor(ut_hour); ut_hour = ut_hour % 60; ut_min = ut_min % 60; ut_sec = ut_sec % 60; console.log( "Up time: " + ut_hour + " Hour(s) " + ut_min + " minute(s) and " + ut_sec + " second(s)" ); |
Output:
Up time: 1 Hour(s) 18 minute(s) and 8 second(s)
Note: The above program will compile and run by using the node index.js command.
Reference: https://nodejs.org/api/os.html#os_os_uptime
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