res.send for general responses in Express - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to send a simple text response using Express.

Express

app.get('/', (req, res) => { res.[1]('Hello World!'); });

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

Asend

Bwrite

Cjson

Drender

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.write which is not a method in Express response object.

Using res.json which sends JSON, not plain text.

Using res.render which is for templates.

The res.send method sends a simple response to the client. It can send strings, buffers, or objects.

2fill in blank

medium

Complete the code to send a JSON response using Express.

Express

app.get('/data', (req, res) => { res.[1]({ message: 'Success' }); });

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

Aend

Bsend

Cwrite

Djson

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.send with an object, which works but does not explicitly set JSON headers.

Using res.end which just ends the response without sending data.

Using res.write which is not an Express method.

The res.json method sends a JSON response. It automatically sets the Content-Type header to application/json.

3fill in blank

hard

Fix the error in sending a response with status 404 and a message.

Express

app.get('/notfound', (req, res) => { res.status(404).[1]('Page not found'); });

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

Ajson

Bsend

Cwrite

Drender

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.write which is not an Express method.

Using res.render which is for templates, not plain text.

Using res.json which sends JSON, but here a simple text message is expected.

To send a status code with a message, chain res.status() with res.send(). The res.send method sends the response body.

4fill in blank

hard

Fill both blanks to send a JSON response with status 201 and a message.

Express

app.post('/create', (req, res) => { res.[1](201).[2]({ success: true }); });

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

Astatus

Bsend

Cjson

Dend

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.send instead of res.json for JSON data.

Using res.end which does not send data.

Not chaining methods properly.

First set the status code with res.status(), then send JSON data with res.json().

5fill in blank

hard

Fill the blanks to send a plain text response with status 500 and a custom message.

Express

app.get('/error', (req, res) => { res.[1](500).[2]('Error: Something went wrong'); });

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

Astatus

Bsend

Cwrite

Djson

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.write which is not an Express method.

Using res.json which sends JSON, not plain text.

Not chaining the status and send methods.

Set the status with res.status(), then send the plain text message using res.send().