HTML

What does a DOCTYPE do? DOCTYPE is an abbreviation for DOCument TYPE. A DOCTYPE is always associated to a DTD – for Document Type Definition.…

CSS

What is CSS selector specificity and how does it work? The browser determines what styles to show on an element depending on the specificity of…

JavaScript

Explain event delegation Event delegation is a technique involving adding event listeners to a parent element instead of adding them to the descendant elements. The…

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