HTML%2BERB is an actively used template language created in 2004. eRuby (Embedded Ruby) is a templating system that embeds Ruby into a text document. It is often used to embed Ruby code in an HTML document, similar to ASP, JSP and PHP. The templating system of eRuby combines the ruby code and the plain text to provide flow control and variable substitution, thus making it easy to maintain.The View module of the rails is responsible to display the response or output on a browser. Read more on Wikipedia...

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Example code from the web:

<ul>
<% 4.times do %>

  <li>list item</li>

<% end %>
</ul>

Example code from Linguist:

<% provide(:title, @header) %>
<% present @users do |user_presenter| %>
	<div class="row key-header">
		<h1><%= @header %></h1>
	</div>

	<div class='row'>
		<div class='small-12 columns'>
			<%= will_paginate %>
		</div>
	</div>
	<div class="row key-table">
		<div class="small-12 columns">
			<div class="row key-table-row">
				<div class="small-2 columns">Name</div>
				<div class="small-3 columns">Email</div>
				<div class="small-1 columns">Chords</div>
				<div class="small-1 columns">Keys</div>
				<div class="small-1 columns">Tunings</div>
				<div class="small-1 columns">Credits</div>
				<div class="small-1 columns">Prem?</div>
				<div class="small-2 columns">Since?</div>
			</div>

			<% if @users == [] %>
				<div class="row key-table-row">
					<div class="small-4 small-centered columns">No Users</div>
				</div>
			<% else %>
				<%= render @users %>
			<% end %>
		</div>
	</div>
	<div class='row'>
		<div class='small-12 columns'>
			<%= will_paginate %>
		</div>
	</div>
<% end %>

Example code from Wikipedia:

class ERBExample
    attr_accessor:variable1
    
    # using bind to access class variables
    def render()
        renderer.result(binding)
    end

    def initialize(variable1)
        @variable1 = variable1
    end

    # Expose private binding() method.
    def get_binding
        binding()
    end
end

example = ERBExample.new(variable1)
renderer = ERB.new(template)
puts output = renderer.result(example.get_binding)

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Last updated January 18th, 2020

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