Run results for: bignumber.js vs. big.js vs. decimal.js vs bn.js

- https://github.com/MikeMcl/bignumber.js/tree/v9.0.0 - https://github.com/MikeMcl/big.js/tree/v5.2.2 - https://github.com/MikeMcl/decimal.js/tree/v10.2.0 - https://github.com/indutny/bn.js

Go to the benchmark

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Native

1370.2M/s

Native + toFixed

13.6M/s

bn.js in-place

1.1M/s

bn.js

1.0M/s

decimal.js

615K/s

bignumber.js

338K/s

big.js

327K/s

View exact numbers

Test name	Executions per second
✓ Native	1,370,193,920 Ops/sec
Native + toFixed	13,581,755 Ops/sec
bn.js in-place	1,087,712 Ops/sec
bn.js	1,029,263 Ops/sec
decimal.js	615,282 Ops/sec
bignumber.js	338,426 Ops/sec
big.js	326,784 Ops/sec

HTML Preparation code:

<!--script src="https://raw.githubusercontent.com/iriscouch/bigdecimal.js/v0.6.1/lib/bigdecimal.js"></script-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/bignumber.js/9.0.1/bignumber.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/big.js/6.0.3/big.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/decimal.js/10.2.1/decimal.min.js"></script>
<script src="https://unpkg.com/bn.js@5.2.1/lib/bn.js"></script>
<!--script src="https://raw.githubusercontent.com/infusion/Fraction.js/v4.0.12/fraction.min.js"></script-->

Tests:

Native
var a = 57005; var b = 42; var c = 1.55; ((((a + b) * b) / 5) * c).toString(); // "742751.9400000001"
Native + toFixed
var a = 57005; var b = 42; var c = 1.55; ((((a + b) * b) / 5) * c).toFixed(9); // "742751.940000000"
decimal.js
var a = new Decimal("57005"); var b = new Decimal("42"); var c = 1.55; a.plus(b).times(b).dividedBy(5).times(c).toString(); // "742751.94"
big.js
var a = new Big("57005"); var b = new Big("42"); var c = 1.55; a.plus(b).mul(b).div(5).mul(c).toString(); // "742751.94"
bignumber.js
var a = new BigNumber("57005"); var b = new BigNumber("42"); var c = 1.55; a.plus(b).multipliedBy(b).dividedBy(5).multipliedBy(c).toString(); // "742751.94"
bn.js
var a = new BN("57005"); var b = new BN("42"); var c = 1.55; a.add(b).mul(b).divn(5).muln(c).toString(); // "742750" the divn(5) affects the precision
bn.js in-place
var a = new BN("57005"); var b = new BN("42"); var c = 1.55; a.iadd(b).imul(b).idivn(5).imuln(c).toString(); // "742750" the idivn(5) affects the precision