What is doctype? Why do you need it? doctype tells the browser to parse the document as html5. Else it will guess how to parse it and can go into quirks mode. <!DOCTYPE html> It is the first tag of a valid html file, is not case-sensitive and…
Here's a brain dump of different frontend interview questions from my personal archive. In no particular order. What are the building blocks of HTML5/WHATWG? * Semantic markup (article, strong, em, mark, etc) * ES6/ES2015 * Video and Audio API * Canvas and SVG * Geolocation API * Communication API/Websockets * Web Worker…