Benchmark: bignumber.js vs. big.js vs. decimal.js (I) no native

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://raw.githubusercontent.com/infusion/Fraction.js/v4.0.12/fraction.min.js"></script-->

Tests:

decimal.js
var a = new Decimal("0.1"); var b = new Decimal("0.2"); a.plus(b).times(b).toString();
big.js
var a = new Big("0.1"); var b = new Big("0.2"); a.plus(b).mul(b).toString();
bignumber.js
var a = new BigNumber("0.1"); var b = new BigNumber("0.2"); a.plus(b).multipliedBy(b).toString();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
decimal.js
big.js
bignumber.js

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36

Browser/OS: Chrome 96 on Windows

View result in a separate tab

Test name	Executions per second
decimal.js	581611.1 Ops/sec
big.js	993168.8 Ops/sec
bignumber.js	546844.8 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):

LLMs can make mistakes. Check important info.

I'll break down the provided JSON and explain what's being tested, compared, and their pros/cons.

**Benchmark Overview**

The benchmark is comparing three libraries: `big.js`, `decimal.js`, and `bignumber.js`. These libraries are designed to handle large numbers and decimal calculations in JavaScript. The test focuses on measuring the performance of each library when performing a specific calculation: `(a + b) * b` (where `a` and `b` are two decimal values).

**Library Overview**

* **big.js**: A high-performance, open-source library for large number arithmetic.
* **decimal.js**: A JavaScript implementation of the Decimal class, which provides support for decimal arithmetic with precise control over rounding and scaling.
* **bignumber.js**: A popular library for arbitrary-precision arithmetic in JavaScript.

**Test Cases**

Each test case is a small script that uses one of these libraries to perform the same calculation. The differences lie in how the calculation is expressed:

1. `decimal.js`:
```javascript
var a = new Decimal("0.1");
var b = new Decimal("0.2");
a.plus(b).times(b).toString();
```
This test case creates two decimal numbers using `Decimal()` and performs arithmetic operations on them.

2. `big.js`:
```javascript
var a = new Big("0.1");
var b = new Big("0.2");
a.plus(b).mul(b).toString();
```
This test case uses the `Big()` constructor to create two large numbers and performs arithmetic operations using the `plus()` and `mul()` methods.

3. `bignumber.js`:
```javascript
var a = new BigNumber("0.1");
var b = new BigNumber("0.2");
a.plus(b).multipliedBy(b).toString();
```
This test case uses the `BigNumber()` constructor to create two large numbers and performs arithmetic operations using the `plus()` and `multipliedBy()` methods.

**Pros/Cons of each approach**

* **big.js**: High performance, but might be more complex for beginners due to its unique API.
	+ Pros: Fast execution times, good memory usage management.
	+ Cons: Steeper learning curve, limited support for non-numeric input validation.
* **decimal.js**: Precise control over rounding and scaling, easy to use.
	+ Pros: Robust error handling, flexible configuration options.
	+ Cons: Lower performance compared to `big.js`, might require more memory usage due to extra data structures.
* **bignumber.js**: Wide support for various input formats (e.g., strings, numbers), robust API.
	+ Pros: Easy to use, supports a wide range of inputs, has extensive documentation.
	+ Cons: Lower performance compared to `big.js`, relies on caching mechanism which can lead to performance issues if not properly configured.

**Device-specific considerations**

The benchmark is run in a Chrome 96 browser on Windows Desktop devices. The results may vary across different operating systems, browsers, and hardware configurations.

**Alternatives**

Other libraries that might be used for large number arithmetic include:

* **Fraction.js**: A library for rational number arithmetic.
* **MathJS**: A JavaScript library for mathematical operations with support for large numbers.
* **LibNum**: A C++ library that can be used in JavaScript via an adapter, providing high-performance arbitrary-precision arithmetic.

Please note that the suitability of each library depends on the specific requirements and constraints of your project.

Related benchmarks:

bignumber.js vs. big.js vs. decimal.js (I) no native (version: 0)

- 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

Comparing performance of: decimal.js vs big.js vs bignumber.js

Created: 2 years ago by: Guest

Jump to the latest result

decimal.js

big.js

bignumber.js

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):