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BREAKING CHANGES:
- CJS output removed — ESM only (import classigo from "classigo")
- Object syntax added: classigo({ "btn--active": isActive })
- pnpm replaced by bun
- vite/eslint/vitest removed — tsc + bun test only
New features:
- Object syntax support: { [className]: boolean | null | undefined }
- Mixed strings + objects in a single call
- ClassValue and ClassObject types exported
Architecture:
- src/types.ts — type definitions
- src/index.ts — core logic, fully inlined, no internal helpers
- tsconfig.build.json — separate build config like matchigo
- bench/bench.ts — mitata bench vs clsx and classnames
- tests/runtime.test.ts — 16 tests covering all input types
- CONTRIBUTING.md — commit convention, PR scope, bun-first
- SECURITY.md — private vulnerability reporting via GitHub
- CI updated to bun, publish workflow simplified
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Summary
classigo("btn", { "btn--active": isActive })now supported viaClassObjecttypeclassigo/lite— new strings-only export (137B minified), typed separately so passing an object is a compile errortscoutput withtsc(declarations only) +bun build --minify(JS); v2 goes from 1.04kB → 217B, lite is 137Bperf(core)— invertedtypeofcheck puts the object branch first so the JIT predicts the string path as not-taken; measurable gain on short string workloadsBreaking changes
require("classigo")) is removedClassValuenow includesClassObject— string-only callers can switch toclassigo/liteto keep the narrower typeTest plan
bun run testpassesbun run typecheckpassesbun run buildproducesdist/index.js(217B) anddist/lite.js(137B)bun run benchruns all 9 groups without errordist/index.d.tsanddist/lite.d.tsare present and correct