Dmitry Utkin Dmitryure

[12:14 AM] acreddy : are hooks value stored in fiber?

[10:40 AM] ghardin137 : not really

[10:50 AM] acemarke : @acreddy, @ghardin137 : yes they are, actually.

A "fiber" is a plain JS object that React uses to store bookkeeping information on each rendered component in the tree. The linked list of hooks is indeed stored as a field on the fiber for that component

DOM Performance

How the browser renders the document
- Receives the data (bytes) from the server.
- Parses and converts into tokens (<, TagName, Attribute, AttributeValue, >).
- Turns tokens into nodes.
- Turns nodes into the DOM tree.
Builds CSSOM tree from the css rules.

	// create a bookmark and use this code as the URL, you can now toggle the css on/off
	// thanks+credit: https://dev.to/gajus/my-favorite-css-hack-32g3
	javascript: (function() {
	var elements = document.body.getElementsByTagName('*');
	var items = [];
	for (var i = 0; i < elements.length; i++) {
	if (elements[i].innerHTML.indexOf('* { background:#000!important;color:#0f0!important;outline:solid #f00 1px!important; background-color: rgba(255,0,0,.2) !important; }') != -1) {
	items.push(elements[i]);
	}
	}