View helpers in Ruby on Rails - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to use a Rails view helper that creates a link to the home page.

Ruby on Rails

<%= link_to 'Home', [1] %>

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

Ahome_url

Broot_path

Cindex_path

Dmain_page

Attempts:

3 left

💡 Hint

Common Mistakes

Using a URL helper instead of a path helper

Using a non-existent helper name

The root_path helper returns the path to the home page defined in routes.

2fill in blank

medium

Complete the code to safely display user input in a view using a Rails helper.

Ruby on Rails

<%= [1](user_input) %>

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

Araw

Bescape_once

Chtml_safe

Dsanitize

Attempts:

3 left

💡 Hint

Common Mistakes

Using raw which outputs unsafe HTML

Using html_safe on untrusted input

The sanitize helper cleans user input to prevent harmful HTML or scripts.

3fill in blank

hard

Fix the error in the code to correctly display a formatted date using a Rails view helper.

Ruby on Rails

<%= [1](user.created_at, format: :short) %>

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

Aformat_time

Bdate_format

Cl

Dformat_date

Attempts:

3 left

💡 Hint

Common Mistakes

Using non-existent helpers like format_date

Confusing with strftime which is a Ruby method, not a helper

The l helper localizes and formats dates and times according to Rails conventions.

4fill in blank

hard

Fill both blanks to create a form input field with a label using Rails view helpers.

Ruby on Rails

<%= [1] :user, :email %>
<%= [2] :user, :email %>

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

Alabel

Btext_field

Cemail_field

Dform_for

Attempts:

3 left

💡 Hint

Common Mistakes

Using text_field instead of email_field for email inputs

Mixing up the order of label and input helpers

The label helper creates a label tag, and email_field creates an input for email.

5fill in blank

hard

Fill all three blanks to create a link that opens in a new tab with Rails view helpers.

Ruby on Rails

<%= link_to [1], [2], [3]: '_blank' %>

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

A'Google'

B'https://www.google.com'

Ctarget

Drel

Attempts:

3 left

💡 Hint

Common Mistakes

Using rel instead of target for opening in new tabs

Not quoting the link text or URL

The first argument is the link text, the second is the URL, and the third is the option key target to open in a new tab.