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What are exit codes in Node.js?

What are exit codes in Node.js? List some exit codes. 


Asked On2019-06-17 13:27:04 by:gokilapriya

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 can exit Node.js programs using the explicit process.exit function call. The process.exit function exits from the current Node.js process. It takes an exit code, which is an integer.
The process object is a global variable that lets us manage the current Node.js process. Since it is a global, we can access it from anywhere inside a Node.js program without using require to import it.
EX:
// batman.js
console.log('Batman begins');

process.on('exit', function(code) {  
    return console.log(`About to exit with code ${code}`);
});

Answerd on:2019-08-29 Answerd By:Annaliya

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Exiting from a Node.js program started at the command line can be as simple as waiting for the script to finish executing. Implicitly, the Node.js process will exit when it reaches the end of the script.

You can see this by running the following scipt:

// batman.js
console.log('Batman begins');

process.on('exit', function(code) {  
    return console.log(`About to exit with code ${code}`);
});
Run the program with the command node batman.js, and you will see it output the first statement about Batman. In addition, the "exit" callback fires, resulting in a print out of the message about exiting, and an exit code. You should see something similar to the following:

$ node batman.js 
Batman begins  
About to exit with code 0  
Note that pending events and loops will block program exit. Add this repeating function at the end of the above script.

// batman.js

// ...

setInterval((function() {  
    return console.log('I\'m Batman!');
}), 1000);

Answerd on:2019-07-02 Answerd By:avi738

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We can exit Node.js programs using the explicit process.exit function call. The process.exit function exits from the current Node.js process. It takes an exit code, which is an integer.
The process object is a global variable that lets us manage the current Node.js process. Since it is a global, we can access it from anywhere inside a Node.js program without using require to import it.
EX:
// batman.js
console.log('Batman begins');

process.on('exit', function(code) {  
    return console.log(`About to exit with code ${code}`);
});

Answerd on:2019-06-28 Answerd By:KAPILJHADE

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