09:00 - 09:45
You know your Lookbehind Assertions, your fat arrows and asynchronous iteration. But if your code is assembling HTML to get delivered to a user’s browser, how much do you know about HTML’s semantics? Choosing the correct HTML element rather than vomiting a "div" or belching out a "span" can greatly enhance the end users’ experience, with no fragile extra code to write and maintain.
One of the co-editors of the HTML5.3 spec will take you on a magical treasure hunt around HTML, showing you marvellous gifts and hidden wonders that will also help future-proof your code, and turn you into a time-travelling Frontend Superhero, adored by millions*.
(* actual number not guaranteed. But your users will be happy.)