液体模板:for循环中的偶/奇项目 [英] Liquid templates: even/odd items in for loop

问题描述

如果我在Liquid(使用Jekyll)中有一个for循环，我该如何仅定位偶数(或奇数)项?我已经尝试过:

If I have a for loop in Liquid (using Jekyll), how can I target even (or odd) items only? I have tried:

{% for item in site.posts %}
    {% if forloop.index % 2 == 1 %}

但是似乎不起作用.我也尝试过:

but that doesn't seem to work. I have also tried:

(forloop.index % 2) == 1

和:

forloop.index - (forloop.index / 2 * 2) == 1

推荐答案

我想您将为此使用循环标记.例如:

I think you'll want to use the cycle tag for this. For example:

{% for post in site.categories.articles %}
   <article class="{% cycle 'odd', 'even' %}"></article>
{% endfor %}

如果您希望每个周期使用不同的HTML标记:

If you want different HTML markup for each cycle:

{% for item in site.posts %}
  {% capture thecycle %}{% cycle 'odd', 'even' %}{% endcapture %}
  {% if thecycle == 'odd' %}
    <div>echo something</div>
  {% endif %}
{% endfor %}

您可以在设计师液体中找到有关其的更多信息，尽管该示例并没有特别的帮助.此 Shopify支持线程也应有所帮助.

You can find more information on it at Liquid for Designers, although the example there isn't particularly helpful. This Shopify support thread should also help.

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