Hexo: Output Posts by Category

This article shows how to output posts under a specific category in Hexo.

Questions answered

https://www.zhihu.com/question/404351568

https://segmentfault.com/q/1010000017758828

Preface

The official helper function list_categories isn’t enough, so I used the categories variable directly.

I haven’t learned Node.js, so this is mostly trial and error.

I first logged site.categories.data with console.log(). It looks like this:

After some tinkering, I found this object is used via map().

Output category titles

<% site.categories.map(function(category){  %>
    <h1><%= category.name %></h1>
<% }) %>

Output post titles

<% site.categories.map(function(category){  %>
    <h1><%= category.name %></h1>
    <% category.posts.map(function(post){  %>
		<h2><%= post.title %></h2>
    <% }) %>
<% }) %>