process.exit and exit codes in Node.js - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to exit the Node.js process with a success code.

Node.js

process.[1](0);

Drag options to blanks, or click blank then click option'

Aquit

Bexit

Cstop

Dend

Attempts:

3 left

💡 Hint

Common Mistakes

Using methods like quit or stop which do not exist on process.

Not passing an exit code.

The process.exit() method stops the Node.js process. Passing 0 means success.

2fill in blank

medium

Complete the code to exit the process with an error code 1.

Node.js

process.exit([1]);

Drag options to blanks, or click blank then click option'

A1

B255

C2

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 which means success.

Using exit codes outside the valid range 0-255.

Exit code 1 usually means the process ended with an error.

3fill in blank

hard

Fix the error in the code to properly exit the process with code 2.

Node.js

process.exit = [1];

Drag options to blanks, or click blank then click option'

A() => process.exit(2)

Bexit(2)

C2

Dprocess.exit(2)

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning a number directly to process.exit.

Calling process.exit inside assignment without a function wrapper.

You cannot assign a number to process.exit. Instead, assign a function that calls process.exit(2).

4fill in blank

hard

Fill both blanks to exit with code 3 after logging an error message.

Node.js

console.error('Error occurred');
process.[1]([2]);

Drag options to blanks, or click blank then click option'

Aexit

B1

C3

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid method names like stop.

Passing wrong exit codes like 1 instead of 3.

Use process.exit(3) to exit with code 3 after logging the error.

5fill in blank

hard

Fill all three blanks to exit with code 4 only if an error variable is true.

Node.js

if ([1]) {
  console.log('Exiting due to error');
  process.[2]([3]);
}

Drag options to blanks, or click blank then click option'

Aerror

Bexit

C4

Dfail

Attempts:

3 left

💡 Hint

Common Mistakes

Using undefined variables in the condition.

Using invalid method names instead of exit.

Passing wrong exit codes.

Check if error is true, then call process.exit(4) to exit with code 4.