Ruby block printing/displaying issue

I am a newbie. The tutorial I am following says anything entered between blocks will be printed/displayed. However, I have not been able to do it.

https://www.youtube.com/watch?v=0OzDgi0zqJU

at 3:49, he prints out hello or any word between the block. What am I doing wrong that it does not print out anything I enter between block.

<h1>All Posts</h1>

<% @posts.each do |post| %>
Hello or something else
<% end %>


RESULT: ALL POSTS

@posts

Hello or something else

1 Answer
1

You don't have any post in your database I guess (means @posts variable has no object). Otherwise, for each post Hello or something else will print in the html.

@posts

when you want to print something in .erb, you will have to enclose it within <%= %> only when you want to show something fetch from the database/from the controller instance variable/from the helper file.

.erb

<%= %>

If you loop through like below code then you will get the difference:

<% 5.times do |t| %>
Hello or something else
<% end %>


It'll print Hello or something else five times in the html.

Hello or something else

Let's say, Your Post table in database contains some data. SO, we can do that like below:

<% @posts.each do |post| %>
<%= post.title %> # I assumed your post model contains a title attribute
<% end %>


By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.