Chrome DevTools for Node.js in Node.js - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start Node.js with the inspector enabled.

Node.js

node --[1] app.js

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

Adebug

Binspect

Crun

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using --debug which is deprecated

Using --run which does not enable debugging

Using --start which is invalid

Use --inspect to start Node.js with the inspector enabled for debugging.

2fill in blank

medium

Complete the code to pause execution on the first line using the inspector.

Node.js

node --inspect-brk [1]

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

Aindex.js

Bmain.js

Capp.js

Dserver.js

Attempts:

3 left

💡 Hint

Common Mistakes

Using a file name that does not exist

Omitting the file name

Using --inspect without --inspect-brk to pause

The --inspect-brk flag pauses execution on the first line of the specified file, here app.js.

3fill in blank

hard

Fix the error in the command to open Chrome DevTools for Node.js debugging.

Node.js

chrome://[1]

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

Adebug

Bdevtools

Cinspect-devtools

Dinspect

Attempts:

3 left

💡 Hint

Common Mistakes

Using chrome://devtools which opens DevTools for the browser

Using chrome://debug which is invalid

Using chrome://inspect-devtools which does not exist

The correct URL to open Chrome DevTools for Node.js debugging is chrome://inspect.

4fill in blank

hard

Fill both blanks to create a debugger statement and start Node.js with the inspector.

Node.js

function test() {
  [1];
}

node --[2] app.js

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

Adebugger

Binspect

Cbreakpoint

Ddebug

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'breakpoint' instead of 'debugger'

Using --debug which is deprecated

Omitting the debugger statement

The debugger statement pauses execution when DevTools is connected. The --inspect flag starts Node.js with the inspector enabled.

5fill in blank

hard

Fill all three blanks to connect Chrome DevTools to a Node.js process on port 9229.

Node.js

node --[1]=9229 app.js

Open Chrome and go to chrome://[2]

Click on 'Configure' and add 'localhost:[3]' to the list.

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

Ainspect

C9229

Ddebug

Attempts:

3 left

💡 Hint

Common Mistakes

Using --debug instead of --inspect

Using wrong port number

Not adding the correct port in Chrome's configuration

Use --inspect=9229 to start Node.js on port 9229. Then open chrome://inspect and add localhost:9229 to connect DevTools.