<!-- JS selector for site. Chirpy v2.3 https://github.com/cotes2020/jekyll-theme-chirpy © 2020 Cotes Chung MIT Licensed --> {% if page.layout == 'home' or page.layout == 'post' or page.layout == 'categories' %} {% assign js = page.layout %} {% else %} {% assign js = "page" %} {% endif %} {% assign js_src = js | prepend: '/assets/js/' | append: '.min.js' | relative_url %} <script async src="{{ js_src }}"></script> {% if page.math %} <!-- MathJax --> <script defer src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script> <script defer src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script> {% endif %} {% if jekyll.environment == 'production' %} <!-- PWA --> <script defer src="{{ '/app.js' | relative_url }}"></script> <!-- GA --> {% if site.google_analytics.id %} {% include google-analytics.html %} {% endif %} {% endif %}