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@pwngh/money

v0.3.0

Published

Minor-unit integer money on checked i64: ISO 4217 exponents, parse, format, five rounding modes, exact allocation, rational conversion, a canonical wire codec, an embedded property prover, and an opt-in WebAssembly fold. Two single-file amalgamations, zer

Downloads

27

Vulnerabilities

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Links

Git

Maintainers

pwnghpwngh

Keywords

moneyminor-unitsbiginti64allocationidempotencywasmconformance

Readme

@pwngh/money

Minor-unit integer money for TypeScript. An amount is a currency code plus a bigint count of minor units (cents), checked into the signed 64-bit range that Postgres BIGINT and C# long share, so arithmetic is exact and every carrier agrees on the edges. The package covers ISO 4217 exponents, strict parsing, locale-free formatting, five explicit rounding modes, exact allocation, rational currency conversion, a canonical wire codec, and a checked WebAssembly fold for the hot summation path.

Everything ships as three independent single-file amalgamations — the semantic layer at ., the fold at ./fold, the database carrier at ./db — each with its conformance vectors and a selfTest() embedded, so any copy in any runtime proves itself. Zero runtime dependencies, no binary in the tree.

Documentation

Consumer guides live in docs/: getting started, vendoring, the fold, the database carrier, and porting to other languages.

License

MIT © Preston Neal — see LICENSE.md.