lang/js/ FetchExamples
See mozilla
fetch('http://example.com/movies.json')
.then((response) => response.json())
.then((data) => console.log(data));
const q = (x,y=document) => y.querySelector(x)
const qq = (x,y=document) => Array.from(y.querySelectorAll(x))
const reload_content = _ => {
fetch("/update")
.then(response => response.text())
.then(text=> {
q("div.content").innerHTML = text
})
}