Local storage breaks down when a web app needs searchable data, offline writes, and more than a few strings. IndexedDB is the browser database for that job, if the app treats it like a cache with rules instead of a tiny server.
RFC 10008 gives HTTP a method for safe queries with a body. It fills the awkward gap between long GET URLs and POST requests that normally reserved for mutations.
Programs do not need to know whether input came from a keyboard, a file, or another program. Standard streams give them the same three doors every time.
Deploying code to production is irreversible in the short term - when something goes wrong, rolling back requires another deploy, which takes time and may have its own risks. Feature flag allows you to revert fast
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