Line coverage says a line ran, and mutation testing says a test would have noticed if it were wrong. The forty-three are the interesting number and they are…
iterable accepts an array or a Traversable, and only one of those can be counted without consuming it. A generator has no length until it has finished, which…
The dev server runs on a different port from the API, which is a cross-origin request, and proxying is simpler than configuring CORS for development only. changeOrigin rewrites…
A 38-second dev server start on a machine with nothing else to do. Native ESM changes the feedback loop, and running two build tools has a specific cost.
Three mutation metrics are reported and two of them mostly restate line coverage. Setting a threshold on covered MSI and none on the others is what stops the…
str_contains takes one needle, deliberately, and the array version everybody wants was rejected during the RFC. The argument against an array form was ambiguity — any or all…
A watcher that runs immediately and assigns to another ref is deriving a value, which is what computed is for and does better. The computed version tracks its…