Updating specific fields in Firebase - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to update a single field in a Firestore document.

Firebase

db.collection('users').doc('user123').update({ 'age': [1] });

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

A30

B'30'

Cage

Dupdate

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the number in quotes, making it a string.

Using the field name instead of the value.

The value to update the field must be a number, not a string or a variable name.

2fill in blank

medium

Complete the code to update the 'status' field to 'active' in a Firestore document.

Firebase

db.collection('tasks').doc('task1').update({ 'status': [1] });

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

Aactive

B'active'

C"active"

Dstatus

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around the string value.

Using the field name instead of the value.

String values in JavaScript must be inside quotes.

3fill in blank

hard

Fix the error in the code to update the 'email' field in Firestore.

Firebase

db.collection('users').doc('user456').update({ email: [1] });

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

Auser.email

B"[e-mail]"

CuserEmail

D'[e-mail]'

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name without defining it.

Not using quotes around the email string.

The email value must be a string literal with quotes.

4fill in blank

hard

Fill both blanks to update 'firstName' and 'lastName' fields in Firestore.

Firebase

db.collection('users').doc('user789').update({ 'firstName': [1], 'lastName': [2] });

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

A'John'

B'Doe'

CJohn

DDoe

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around the names.

Using unquoted variable names.

Both names must be strings with quotes.

5fill in blank

hard

Fill all three blanks to update 'city', 'state', and 'zip' fields in Firestore.

Firebase

db.collection('addresses').doc('addr1').update({ 'city': [1], 'state': [2], 'zip': [3] });

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

A'Seattle'

B'WA'

C98101

D9810

Attempts:

3 left

💡 Hint

Common Mistakes

Putting zip code in quotes making it a string.

Not quoting city or state strings.

City and state are strings with quotes; zip is a number without quotes.