@formatjs/bigdecimal

BigInt-backed decimal arithmetic library designed as a lightweight replacement for decimal.js in ECMA-402 polyfills.

Representation

Values are represented as mantissa × 10^exponent where:

• mantissa is a bigint (signed, normalized — no trailing zeros)
• exponent is a number (integer scaling factor)
• Special flags handle NaN, ±Infinity, and -0

API

Implements the 27 methods used by @formatjs/ecma402-abstract:

• Arithmetic: times, div, plus, minus, mod, abs, negated, pow, floor, ceil, log
• Comparison: eq, lessThan, greaterThan, lessThanOrEqualTo, greaterThanOrEqualTo
• Queries: isZero, isNaN, isFinite, isNegative, isPositive, isInteger
• Conversion: toNumber, toString
• Static: BigDecimal.pow, BigDecimal.set