Button vs. Link: Native Semantics Before Custom Click Handlers
Use links for navigation and buttons for actions, preserving native focus and keyboard behaviour before adding custom click handlers or ARIA roles.
Articles
Development, page 28 of 28
Development is the broadest category in my writing, so it works as the main archive rather than a narrow subject label. It brings together implementation notes and technical decisions, with delivery lessons from across the rest of the site.
Button vs. Link: Native Semantics Before Custom Click Handlers. 
Safe DOM Insertion and Sanitisation. Safe DOM Insertion and Sanitisation
Choose between textContent and innerHTML safely, handle Internet Explorer's innerText fallback, and know exactly when untrusted HTML needs sanitisation.
Why removeEventListener() Needs the Same Function Reference. Why
removeEventListener()Needs the Same Function ReferenceUnderstand why removeEventListener needs the original callback reference, how anonymous functions differ, and what Internet Explorer required in 2010.