How to update the chart without reloading the entire page?

Question

AJAX

There is an html page that includes a php file where the chart is created. The html page is updated with . How can I update the chart without refreshing the entire page. Heard about Ajax, but it turned out to update only text data.

Answer 1

document.querySelector("img").src = 'img.php?' + Math.random()

Answer 2

setInterval(()=>{document.getElementById("myImg").src=document.getElementById("myImg").src.split("?")[0]+"?_="+(new Date()).getTime());},1000);

I would add a timestamp so that the browser understands that it is necessary to download the file again and not take it from the cache.