phoenix-framework - Phoenix 模板(如果有条件)

Question

我从 Rails 迁移，并希望这能在我的模板中工作？

      <% if true do %>
        <li><p>hello</p></li>
      <% else %>
        <li><p>world</p></li>
      <% end %>

似乎没有一个条件得到呈现。如何实现这一目标？

谢谢

Answer 1

您需要使用 <%=而不是 <%

<%= if true do %>
...
<% end %>

来自 EEx docs :

All expressions that output something to the template must use the equals sign (=). Since everything in Elixir is an expression, there are no exceptions for this rule. For example, while some template languages would special-case if clauses, they are treated the same in EEx and also require = in order to have their result printed: