@@ -121,7 +121,7 @@ Templates, Partials and Layouts
-------------------------------
As mentioned before, the final HTML output is a composition of three Rails elements: `Templates`, `Partials` and `Layouts`.
Find below a brief overview of each one of them.
Below is a brief overview of each one of them.
### Templates
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@@ -131,25 +131,25 @@ Rails supports multiple template systems and uses a file extension to distinguis
#### ERB
Within an ERB template Ruby code can be included using both `<% %>` and `<%= %>` tags. The `<% %>` are used to execute Ruby code that does not return anything, such as conditions, loops or blocks, and the `<%= %>` tags are used when you want output.
Within an ERB template, Ruby code can be included using both `<% %>` and `<%= %>` tags. The `<% %>` tags are used to execute Ruby code that does not return anything, such as conditions, loops or blocks, and the `<%= %>` tags are used when you want output.
Consider the following loop for names:
```html+erb
<b>Names of all the people</b>
<h1>Names of all the people</h1>
<% @people.each do |person| %>
Name: <%= person.name %><br/>
<% end %>
```
The loop is setup in regular embedding tags `<% %>` and the name is written using the output embedding tag `<%= %>`. Note that this is not just a usage suggestion, for Regular output functions like print or puts won't work with ERB templates. So this would be wrong:
The loop is set up in regular embedding tags (`<% %>`) and the name is written using the output embedding tags (`<%= %>`). Note that this is not just a usage suggestion, for regular output functions like `print` or `puts` won't work with ERB templates. So this would be wrong:
```html+erb
<%# WRONG %>
Hi, Mr. <% puts "Frodo" %>
```
To suppress leading and trailing whitespaces, you can use `<%-``-%>` interchangeably with `<%` and `%>`.
To supress leading and trailing whitespaces, you can use `<%-``-%>` interchangeably with `<%` and `%>`.
