为什么要配置 hexo next 主题自定义 js 文件呢？主要原因有两点：
不可靠：加载第三方站点的 js 依赖其站点的稳定性，如果第三方站点给挂了或者不维护了，那么加载的地址就失效了，访问直接 404… 比如最近就遇到 next 主题”不蒜子”文章 PV 统计功能用不了了，Chrome 抓包发现 https://dn-lbstatics.qbox.me/busuanzi/2.3/busuanzi.pure.mini.js 这个地址 404 了，看了 “不蒜子”官方 blog 通知 才发现原来换成了 https://busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js。
加载速度慢：比如之前将 gitalk 功能用到的 https://rawgit.com/qhh0205/78e9e0b1f3114db6737f3ed8cdd51d3a/raw/3894c5be5aa2378336b1f5ee0f296fa0b22d06e9/md5.min.js 文件嵌入到主题，发现每次打开 blog 网站都加载很慢，Chrome 抓包发现是该文件加载缓慢，一直 pending 很久…
那么解决上面两个问题的办法就是可以将远程加载的 js 文件下载下来，放到本地 netx 主题 source/js/src/ 目录下，让 hexo 生成静态网站时，加载生成静态站点本身的 js。下面举两个例子。
next 主题 gitalk 评论功能加载自定义 js
- 将 https://github.com/blueimp/JavaScript-MD5/blob/master/js/md5.min.js 文件下载下来放到
themes/next/source/js/src/路径下。 - 修改
themes/next/layout/_third-party/comments/gitalk.swig，加载md5.min.js改为<script src="/js/src/md5.min.js"></script>：1
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17{% if page.comments && theme.gitalk.enable %}
<link rel="stylesheet" href="https://unpkg.com/gitalk/dist/gitalk.css">
<script src="https://unpkg.com/gitalk/dist/gitalk.min.js"></script>
<script src="/js/src/md5.min.js"></script>
<script type="text/javascript">
var gitalk = new Gitalk({
clientID: '3840ba8c8d80c18be7e3',
clientSecret: '1b00f2efe5285973c24da9ed9ac895775eacc8ea',
repo: '{{ theme.gitalk.repo }}',
owner: '{{ theme.gitalk.githubID }}',
admin: ['{{ theme.gitalk.adminUser }}'],
id: md5(location.pathname),
distractionFreeMode: '{{ theme.gitalk.distractionFreeMode }}'
})
gitalk.render('gitalk-container')
</script>
{% endif %}
next 主题 “不蒜子” PV 统计功能加载自定义 js
- 将 https://busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js 文件下载
下来放到themes/next/source/js/src/路径下。 - 修改
themes/next/layout/_third-party/analytics/busuanzi-counter.swig，将原先<script async src="https://dn-lbstatics.qbox.me/busuanzi/2.3/busuanzi.pure.mini.js"></script>改为<script async src="/js/src/busuanzi.pure.mini.js"></script>：1
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21{% if theme.busuanzi_count.enable %}
<div class="busuanzi-count">
<script async src="/js/src/busuanzi.pure.mini.js"></script>
{% if theme.busuanzi_count.site_uv %}
<span class="site-uv">
{{ theme.busuanzi_count.site_uv_header }}
<span class="busuanzi-value" id="busuanzi_value_site_uv"></span>
{{ theme.busuanzi_count.site_uv_footer }}
</span>
{% endif %}
{% if theme.busuanzi_count.site_pv %}
<span class="site-pv">
{{ theme.busuanzi_count.site_pv_header }}
<span class="busuanzi-value" id="busuanzi_value_site_pv"></span>
{{ theme.busuanzi_count.site_pv_footer }}
</span>
{% endif %}
</div>
{% endif %}
配置完成后需要 hexo clean && hexo g 生效…
附件
怕以下两个远程站点 js 丢了，在此备份一下吧…
https://github.com/blueimp/JavaScript-MD5/blob/master/js/md5.min.js：1
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https://busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js:1
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