How to write it in native js?

Question

JavaScript

this.$ = cheerio.load(html)
this.$('#myApp').removeAttr('data-server-rendered').removeAttr('id')
this.$(`body script[src="/myApp/app.js"]`).remove()
this.$(`head link[href="/myApp/app.js"]`).remove()

Answer 1

const html = parseHTML('<a href="#">Example</a>');
const text = html.querySelector('a').innerText;

console.log(text); //> Example

function parseHTML(html) {
    var page = document.implementation.createHTMLDocument();
    page.body.innerHTML = html;
    return page.body;
}