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Senior Frontend Interview: How to Build a Virtualized List From Scratch

Asim Zaidi
5 min readApr 1

React is one of the most popular front-end libraries, and it has a vast and active community that contributes to its development. In this article, we will discuss how to build a virtualized list from scratch, a topic that often comes up in senior React interviews.

A virtualized list is a list that renders only a subset of its items and…

Asim Zaidi

Senior Software Engineer @Apple | Prev: SSWE @Atlassian | bootstrapping | Shipping products users love | Helping people break into tech @