The process.uptime() method is an inbuilt application programming interface of the process module which is used to get the number of seconds the Node.js process is running.
Syntax:
process.uptime();
Parameters: This method does not accept any parameter.
Return Value: It returns a floating-point number specifying the number of seconds the Node.js process is running.
Below examples illustrate the use of process.uptime() method in Node.js:
Example 1:
// Node.js program to demonstrate the // process.uptime() Method // Allocating process module const process = require( 'process' );
// Printing the number of seconds // the Node.js process is running console.log(process.uptime()); |
Output:
0.0842063
Example 2:
// Node.js program to demonstrate the // process.uptime() Method // Allocating process module const process = require( 'process' );
// Checking whether the method // exists or not if (process.uptime) {
// Printing uptime() value
console.log( "The number of seconds the"
+ " Node.js process is running: "
+ process.uptime() + " seconds" );
var i = 1000000;
while (i--);
console.log( "The number of seconds the"
+ " Node.js process is running: "
+ process.uptime() + " seconds" );
console.log( "In whole seconds: "
+ Math.floor(process.uptime())
+ " seconds" );
} |
Output:
the number of seconds the Node.js process is running: 0.077 seconds the number of seconds the Node.js process is running: 0.087 seconds In whole seconds: 0 seconds
Note: The above program will compile and run by using the node filename.js
command.
Reference: https://nodejs.org/api/process.html#process_process_uptime