Preloading arrives in 7.4 and this year the closest equivalent is making sure the cache is warm before traffic reaches a new release, which is a deployment concern…
Every build begins by sending the build context to the daemon, and without a .dockerignore that context is the whole directory — including node_modules, the .git history and…
A touchstart or wheel listener may call preventDefault, so the browser cannot start scrolling until the handler has run — which means every such listener delays scroll by…
Caching the rows a query returned saves the database round trip and leaves the hydration, the mapping and the aggregation to happen on every request anyway. Profiling usually…
CommonsChunkPlugin required declaring which modules were common, which meant knowing the dependency graph in advance and updating the configuration whenever it changed. chunks: ‘all’ lets it split synchronous…
Lazy-loading images with a scroll listener means running getBoundingClientRect for every candidate on every scroll event, which forces layout and is exactly the work that makes scrolling stutter.…