Benchmark: lodash.round VS Math.round (divide by 0)

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var x = 5.236;

Tests:

Round floating number using lodash round function
_.round(x / 0, 2);
Round floating number using toFixed()
Math.round(x / 0);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Round floating number using lodash round function
Round floating number using toFixed()

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):

LLMs can make mistakes. Check important info.

Let's break down what's being tested on the provided JSON.

**Benchmark Definition**

The benchmark compares two approaches for rounding floating-point numbers:

1. `_.round(x / 0, 2)` using the Lodash library
2. `Math.round(x / 0)` (note: this will actually throw a division by zero error, but we're testing it anyway)

**Options Compared**

In both cases, a single division operation is performed on the variable `x`, which is initialized to `5.236`. The rounding method is then applied.

**Pros and Cons**

**Lodash `.round()`**

Pros:

* Can handle non-integer numbers
* Returns a value between -0.5 and 0.5, depending on the fractional part of the input

Cons:

* Will return NaN (Not a Number) if the input is NaN (which happens when dividing by zero)
* May have performance implications due to the use of a custom rounding function

**JavaScript `Math.round()`**

Pros:

* Fast and efficient
* Returns an integer value, which can be useful for certain applications

Cons:

* Will throw a division by zero error if the input is NaN
* Does not handle non-integer numbers correctly (returns the nearest integer)

**Other Considerations**

* Both approaches will fail when dividing by zero, as it's undefined in mathematics. However, Lodash `.round()` will return NaN, while JavaScript `Math.round()` will throw an error.
* If you need to round a floating-point number that may be NaN or non-integer, Lodash `.round()` might be a better choice.

**Library and Syntax**

The Lodash library is a popular utility library for JavaScript. It provides various functions for tasks like string manipulation, array manipulation, and mathematical operations (like rounding). In this case, the `_.round()` function is used to round a floating-point number.

There are no special JavaScript features or syntax mentioned in this benchmark. If you're interested in exploring such features, there are many other benchmarks available on MeasureThat.net!

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36

Browser/OS: Chrome 91 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Round floating number using lodash round function	1105040.6 Ops/sec
Round floating number using toFixed()	5918113.0 Ops/sec

Related benchmarks:

lodash.round VS Math.round (divide by 0) (version: 0)

Compare round lodash function vs javascript native toFixed() function

Comparing performance of: Round floating number using lodash round function vs Round floating number using toFixed()

Created: 3 years ago by: Guest

Jump to the latest result

Round floating number using lodash round function

Round floating number using toFixed()

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):