Benchmark: Multiply using Decimal.js vs Multiply using native numbers vs exactMath

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/npm/decimal.js-light@2.5.0/decimal.min.js'></script>
<script src='https://cdn.jsdelivr.net/npm/exact-math@2.2.3/dist/exact-math.js'></script>

Script Preparation code:

var x = 5.236;

Tests:

Multiply using Decimal.js
Decimal('0.00253452345').times(x)
Multiply using native numbers
0.00253452345 * x
exactMath
exactMath.div('0.00253452345', x);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Multiply using Decimal.js
Multiply using native numbers
exactMath

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

**Overview**

The provided JSON represents a JavaScript benchmark test case on MeasureThat.net. The test compares three approaches for multiplying a decimal value `x` by another decimal value: using the Decimal.js library, native JavaScript numbers, and exactMath.

**Options Compared**

1. **Decimal.js**: A popular library for working with decimal arithmetic in JavaScript.
2. **Native Numbers**: Using regular JavaScript numbers (which are floating-point numbers) for multiplication.
3. **ExactMath**: A lightweight library specifically designed for fast and accurate decimal arithmetic.

**Pros and Cons of Each Approach**

### Decimal.js

Pros:

* Provides a robust and flexible way to work with decimal arithmetic, including support for arbitrary-precision arithmetic and rounding modes.
* Offers advanced features like scaling, normalization, and conversion to/from other formats.

Cons:

* Can introduce overhead due to the library's complexity and additional functionality.
* May not be optimized for extremely high performance or low-latency applications.

### Native Numbers

Pros:

* Extremely lightweight and fast, as it leverages the native JavaScript engine.
* Suitable for most use cases where decimal precision is sufficient (e.g., financial calculations).

Cons:

* Can introduce errors due to floating-point arithmetic limitations (e.g., rounding errors).
* May not provide precise control over decimal arithmetic operations.

### ExactMath

Pros:

* Optimized for performance and accuracy, making it suitable for high-performance applications.
* Provides a lightweight and compact implementation of decimal arithmetic.

Cons:

* Limited functionality compared to Decimal.js.
* May require additional setup or configuration to work with existing codebases.

**Library Descriptions**

1. **Decimal.js**: A JavaScript library for working with decimal arithmetic, developed by Metageek Labs. It provides a robust and flexible way to perform decimal operations, including support for arbitrary-precision arithmetic and rounding modes.
2. **ExactMath**: A lightweight JavaScript library for fast and accurate decimal arithmetic, developed by Michael Strobl. It is optimized for performance and accuracy, making it suitable for high-performance applications.

**Special JS Features/Syntax**

None mentioned in the provided benchmark definition.

**Other Alternatives**

If you're looking for alternatives to these libraries or approaches:

* For arbitrary-precision arithmetic: `BigInt` (a built-in JavaScript feature introduced in ECMAScript 2020) or libraries like `decimal.js-bignumber`.
* For high-performance decimal arithmetic: Consider using a native library or engine optimized for decimal calculations, such as `google.math` or `mpfr-js`.

When choosing a library or approach, consider your specific requirements, including performance, accuracy, and functionality needs.

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36 Edg/130.0.0.0

Browser/OS: Chrome 130 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Multiply using Decimal.js	916702.6 Ops/sec
Multiply using native numbers	9269336.0 Ops/sec
exactMath	37309.5 Ops/sec

Related benchmarks:

Multiply using Decimal.js vs Multiply using native numbers vs exactMath (version: 0)

Comparing performance of: Multiply using Decimal.js vs Multiply using native numbers vs exactMath

Created: 2 years ago by: Guest

Jump to the latest result

Multiply using Decimal.js

Multiply using native numbers

exactMath

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):