nefe/number-precision

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

4097 stars · 322 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A tiny (~1KB) TypeScript library for JavaScript that performs addition, subtraction, multiplication, and division with exact decimal precision, avoiding floating-point errors like 0.1 + 0.2 = 0.30000000000000004. It also provides number stripping and ratio-based rounding.

Use cases

• fix 0.1 + 0.2 floating point errors in javascript
• precise decimal arithmetic for money calculations
• round 0.105 to 2 decimal places correctly
• avoid floating point precision bugs in frontend apps
• accurate multiplication like 0.362 * 100
• strip floating point noise from computed numbers

When to choose

• you need exact decimal arithmetic in JavaScript without heavyweight dependencies
• bundle size matters and you only need basic arithmetic operations
• you're doing financial or pricing calculations in a web app

When to avoid

• you need arbitrary-precision or big-number math beyond safe integer boundaries
• you need a full decimal type with configurable precision and scale
• your runtime isn't JavaScript/TypeScript

Facets

library · maturity stable

math serialization developer-tools web-development browser floating-point arithmetic rounding-error typescript tiny-library algorithms nodejs javascript

Member repositories

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markdown · JSON · MCP: product_card(name="nefe/number-precision")