Topic

Virtualized rendering

Technique for displaying very long lists in a browser by mounting only the rows near the viewport, recycling their DOM elements while scrolling, and synthesising the scroll extent from a table of row heights.

Current clusters

build1 publisher

GitHub mounts about 100 rows of a million-line diff by knowing every height before paint

A review comment gets a height only once it renders. A line of code has a height you can compute before paint, which is how GitHub mounts about 100 rows of a million-line diff and never corrects the offset table.

Publishers:github.blog

Reality

Evidence58
Adoption24
Hype gap+14
Incentives66
Confidence62