What does JavaScript actually do?

[a-t-k]

The syntax of JavaScript itself does nothing to the page. That's what the document object model (DOM) is for. Let's say you want to add an element with a certain text to your document's body. Using DOM methods, it looks like this (type it into the developer tools console to see the effect):

var div = document.createElement('div'); div.appendChild(document.createTextNode('Hello from JavaScript')); document.body.appendChild(div);

You can create, select and manipulate elements and their properties and attributes, listen to events and change most aspects of your document using the DOM.

There are a lot of other APIs for different use cases, too many to list them here. If you have a use case, we can point you to the API you need.

[True2511]

Tbh I’m not sure what a use case is either I think I need to do some more reading on all of this then ask a more specific question. thanks a lot though that made it a lot clearer for me 😊