
代码
<textarea rows="20" class="textarea"></textarea>
<div class="result"></div>
<script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
const selectElement = document.querySelector('textarea');
function mdx(str) {
if (str.indexOf("------") > 0) {
let v = str.split("------");
str = eval(v[0] + "`" + v[1] + "`");
}
return str.trim();
}
selectElement.addEventListener('change', (event) => {
const result = document.querySelector('.result');
result.innerHTML =
marked.parse(mdx(event.target.value));
});