在Jekyll中使用MathJax3显示数学公式

<script>
  MathJax = {
    tex: {
      inlineMath: [['$', '$']],
      displayMath: [['$$', '$$']],
      processEnvironments: true,
      processRefs: true
    },
    options: {
      skipHtmlTags: ['noscript', 'style', 'textarea', 'pre', 'code'],
      ignoreHtmlClass: 'tex2jax_ignore',
      renderActions: {
        find_script_mathtex: [
          10,
          function (doc) {
            for (const node of document.querySelectorAll('script[type^="math/tex"]')) {
              const display = !!node.type.match(/; *mode=display/);
              const math = new doc.options.MathItem(node.textContent, doc.inputJax[0], display);
              const text = document.createTextNode('');
              node.parentNode.replaceChild(text, node);
              math.start = { node: text, delim: '', n: 0 };
              math.end = { node: text, delim: '', n: 0 };
              doc.math.push(math);
            }
          },
          ''
        ]
      }
    },
    svg: {
      fontCache: 'global'
    }
  };
</script>
<script
  id="MathJax-script"
  async
  src="https://cdn.staticfile.org/mathjax/3.0.1/es5/tex-svg.js"
></script>