V's memory model - GC modes (-gc boehm, -gc none, -prealloc), the optional -ownership checking that catches use-after-move, what unsafe unlocks, and the C interop rules. Use when choosing a GC mode, when a program leaks or grows without bound, when deciding…
Writing and running V tests - _test.v layout, test_ function naming, the assert builtin, fixtures and cleanup with os.vtmp_dir and defer, and the VTEST_ONLY and VTEST_ONLY_FN filters for a subset. Use when adding or changing a V test, when a test does not…
The parts of the V command surface that are easy to miss - inspecting code (`v ast`, `v where`, `v mod why`), shrinking a compiler error (`v reduce`), project hygiene (`v missdoc`, `v check-md`, `v bump`, `v git-fmt-hook`), embedding binaries (`v bin2v`),…
How to build, type-check, format, vet, test and ship V code, and how the v.mod module system resolves imports. Use before declaring a V change finished, when a build or test command is needed, when a dependency will not resolve, when working in the V…
Writing V web applications with veb - the App and Context structs, route attributes with path parameters, ctx.html and ctx.json, templates with $tmpl and $veb.html, middleware with Middleware.use and route_use, shared state with shared and lock, and static…
Create V projects with v new or v init and choose a binary, library or web template.
Manage V packages: install, update, search, remove and link local modules.
V's concurrency primitives - spawn, the sync module (channels, Mutex, RwMutex, WaitGroup, Once, Pool, select), and parallel.amap for parallel map and run. Use when writing code with goroutines, threads, channels, locks, shared mutable state, a WaitGroup, or a…