条件句(Conditionals)

¥Conditionals

Pug 的一流条件语法允许使用可选的括号。

¥Pug’s first-class conditional syntax allows for optional parentheses.

如果你来自 Pug v1，你现在可以省略开头的 -。否则，它是相同的（只是常规的 JavaScript）：

¥If you’re coming from Pug v1, you may now omit the leading -. Otherwise, it’s identical (just regular JavaScript):

<div id="user">
  <h2 class="green">Description</h2>
  <p class="description">foo bar baz</p>
</div>

Pug 还提供了条件 unless，其作用类似于否定 if。以下是等效的：

¥Pug also provides the conditional unless, which works like a negated if. The following are equivalent:

unless user.isAnonymous
  p You're logged in as #{user.name}

if !user.isAnonymous
  p You're logged in as #{user.name}