Benchmark: test 111 - MeasureThat.net

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.5/angular.min.js'></script>

Script Preparation code:

var array = ['banana', 'sausage', 'jesus']

Tests:

underscore
_.some(array, x => x === "banana")
index of
array.indexOf('banana') !== 1

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
underscore
index of

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

I'd be happy to explain what's being tested in the provided JSON benchmark.

**Benchmark Overview**

The benchmark measures the performance of two different JavaScript approaches: using the `indexOf` method on an array, and using the `_some` function from the Lodash library with a callback function.

**Options Compared**

There are two options being compared:

1. **Using `indexOf` method**: This approach uses the `indexOf` method to search for the value "banana" in the `array`. The `indexOf` method returns the index of the first occurrence of the specified value, or -1 if the value is not found.
2. **Using `_some` function with callback**: This approach uses the `_some` function from Lodash, which takes a predicate function (in this case, an anonymous function that checks if `x` equals "banana") and returns `true` if at least one element in the array passes the test.

**Pros and Cons of Each Approach**

1. **Using `indexOf` method**:
	* Pros: Simple and straightforward approach, easy to understand.
	* Cons: May be slower than other approaches that can take advantage of modern JavaScript features or optimizations.
2. **Using `_some` function with callback**:
	* Pros: Can be faster than the `indexOf` method since it uses a more optimized implementation under the hood.
	* Cons: Requires an additional library (Lodash) and may be less intuitive for some developers.

**Other Considerations**

* The benchmark uses two different versions of JavaScript libraries: Lodash (version 4.17.5) and Underscore.js (version 1.8.3). Using a more modern version of these libraries might improve performance.
* The benchmark is run on multiple executions per second, which can help to get an accurate measure of the performance difference between the two approaches.

**Library Usage**

* Lodash is used in the `_some` function with callback. Lodash is a popular utility library that provides functions for various tasks, such as array manipulation, string processing, and more.
* Underscore.js is used in the `array.indexOf('banana') !== 1` benchmark. Underscore.js is another utility library that provides functions similar to Lodash.

**Special JS Feature or Syntax**

There are no special JavaScript features or syntax mentioned in the provided code snippet. However, it's worth noting that modern JavaScript engines often use optimizations such as just-in-time (JIT) compilation and cacheing of frequently executed code to improve performance.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Safari/537.36

Browser/OS: Chrome 90 on Windows

View result in a separate tab

Test name	Executions per second
underscore	3019877.5 Ops/sec
index of	9856635.0 Ops/sec

Related benchmarks:

test 111 (version: 0)

Comparing performance of: underscore vs index of

Created: 3 years ago by: Guest

Jump to the latest result

underscore

index of

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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