Let's break down the provided benchmark definition and test cases to understand what's being tested.

Benchmark Definition

The benchmark is testing two approaches for comparing arrays:

1. Using Lodash's isEqual function
2. Implementing a custom comparison function (compare)

Lodash is a popular JavaScript library that provides utility functions for various tasks, including array manipulation and data structure validation.

Options being compared

The two options being compared are:

• Lodash's isEqual function, which takes two arrays as input and returns a boolean indicating whether they are equal or not.
• A custom comparison function (compare) that takes two arrays as input and returns a boolean indicating whether they are equal or not.

Pros and Cons of each approach

1. Lodash's isEqual function:
   • Pros:
     • Efficient implementation, optimized for performance
     • Easy to use and understand, with a clear and concise API
     • Provides additional features like deep equality checking and support for complex data structures
   • Cons:
     • Additional dependency on Lodash library
     • May have slower startup times due to the need to load the library
2. Custom comparison function (compare):
   • Pros:
     • No additional dependencies, as it's a simple implementation
     • Fast and efficient, with minimal overhead
   • Cons:
     • Requires manual implementation of array comparison logic, which can be error-prone
     • May not provide the same level of convenience or flexibility as Lodash's isEqual function

Other considerations

When choosing between these two approaches, consider the following factors:

• Performance: If speed is critical, the custom comparison function might be a better choice. However, if you prioritize ease of use and convenience, Lodash's isEqual function might be a better fit.
• Complexity: If you need to compare complex data structures or perform deep equality checks, Lodash's isEqual function provides additional features that can simplify your implementation.

Individual test cases

The test cases cover different scenarios:

1. isEqual1: Tests whether the custom comparison function (compare) returns the correct result for an array with identical elements.
2. isEqual2: Tests whether the custom comparison function (compare) returns the correct result for an array with different elements in a specific position (e.g., arr3 has [2, 2], but arr1 has [1, 2]).
3. compare1: Tests whether the custom comparison function (compare) returns the correct result when comparing two arrays of different lengths.
4. compare2: Tests whether the custom comparison function (compare) returns the correct result for an array with identical elements.

Latest benchmark results

The latest benchmark results show that:

• The custom comparison function (compare) returns faster execution times for compare1 and compare2.
• Lodash's isEqual function is slightly slower than the custom implementation, but still provides accurate results.
• Chrome 86 on a Mac OS X 10.15.5 desktop platform performs well across all test cases.

Keep in mind that these results may vary depending on the specific hardware and software configurations used to run the benchmark.