Platform · 2009–now · Platform Wars
Node.js
JS on the server. Unified the stack and created a package ecosystem that is both miracle and hazard.
Why Node.js stuck
Node stuck by making I/O-bound APIs fast to write for front-end refugees who already knew JS. Single-threaded quirks hurt; ecosystem velocity healed. It is not the best server runtime — it is the default one for web teams.
Case studies
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Related
Language · 1995–now
JavaScript
The only language that runs in every browser. Accidental monopoly turned deliberate platform.
Language · 2012–now
TypeScript
JS with a typechecker that conquered the ecosystem — then a native Go compiler that made `tsc` an order of magnitude faster. The rare fad that became the floor.
Framework · 2010–now
Express.js
Thin routing layer on Node that became the default API sketchpad. Middleware culture in a single file.