Frontend Performance
Everything on SkillVeris tagged Frontend Performance — collected across the glossary, study notes, blog, and cheat sheets.
6 resources across 1 library
Interview Questions(6)
Debouncing vs Throttling
Debouncing delays running a function until a burst of calls stops for a set pause, so it fires once at the end, while throttling runs the function at most once…
What Is a Web Performance Budget?
A performance budget is a set of measurable limits — such as maximum bundle size, request count, or a target Time to Interactive — that a team agrees not to ex…
What Is the Time to Interactive (TTI) Metric?
Time to Interactive (TTI) is the point at which a page has rendered its content and the main thread is quiet enough that the browser can reliably respond to us…
What Is First Contentful Paint (FCP)?
First Contentful Paint (FCP) is the time from navigation start until the browser renders the first piece of DOM content — text, an image, a non-white canvas, o…
What Is Total Blocking Time (TBT)?
Total Blocking Time (TBT) sums up the portion of every main-thread task, between First Contentful Paint and Time to Interactive, that exceeds 50 milliseconds —…
What Is the Speed Index Metric?
Speed Index measures how quickly the visible content of a page is painted during load by scoring the visual completeness of the viewport at every recorded fram…