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For loops

Rwf templates have only one kind of for loop: for each. This allows writing more reliable templates, and to avoid common bugs like infinite loops, which will stall a web app in production.

A for loop can iterate over a list of values, for example:

<ul>
<% for value in list %>
  <li><%= value %></li>
<% end %>
</ul>

Template lists, unlike Rust's Vec, can hold variables of different data types, and are dynamically evaluated at runtime:

<% for value in ["one", 2 * 5, 3/1.5] %>
<%= value %>
<% end %>

one
10
2.0

Do n times

If you need to execute some code multiple times, templates come with a handy times function:

<% for n in 5.times %>
  <li><%= n %>.</li>
<% end %>

<li>1.</li>
<li>2.</li>
<li>3.</li>
<li>4.</li>
<li>5.</li>