Benchmark: compare lodash isequal at 5 levels deep

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

window.foo5 = {
    a: 1,
    b: 2,
    c: {
        a: 1,
        b: 2,
        c: {
            a: 1,
            b: 2,
            c: {
                a: 1,
                b: 2,
                c: {
                    a: 1,
                    b: 2
                }
            }
        }
    }
};
window.bar3 = {
    a: 1,
    b: 2,
    c: {
        a: 1,
        b: 2,
        c: {
            a: 1,
            b: 4,
            c: {
                a: 1,
                b: 4,
                c: {
                    a: 1,
                    b: 4
                }
            }
        }
    }
};

Tests:

isEqual
_.isEqual(window.foo, window.bar)
JSON.stringify
JSON.stringify(window.foo) === JSON.stringify(window.bar);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
isEqual
JSON.stringify

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

**Benchmark Explanation**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided JSON represents two individual test cases: `isEqual` and `JSON.stringify`.

**Test Case 1: isEqual**

The first test case compares the equality of two objects using Lodash's `isEqual` function. The benchmark preparation code creates two objects, `window.foo5` and `window.bar3`, with a nested structure. The `Benchmark Definition` specifies that the `isEqual` function should be used to compare these two objects.

**Pros and Cons**

Using Lodash's `isEqual` function has several advantages:

* It is designed to handle complex object structures and can detect deep equality.
* It is optimized for performance, making it suitable for benchmarking purposes.

However, using a library like Lodash may introduce some disadvantages:

* It adds an external dependency that needs to be included in the benchmark execution environment.
* Some developers might prefer to implement their own equality checks rather than relying on a third-party library.

**Test Case 2: JSON.stringify**

The second test case compares the string representation of two objects using JavaScript's built-in `JSON.stringify` function. The benchmark preparation code creates the same nested object structure as in the `isEqual` test case.

**Pros and Cons**

Using `JSON.stringify` has some advantages:

* It is a native JavaScript function that does not require any external dependencies.
* It can provide a simple way to compare object equality by comparing their string representations.

However, using `JSON.stringify` also has some disadvantages:

* It may not handle all possible edge cases or complex data structures accurately.
* The resulting strings may be very large and difficult to parse, especially for deeply nested objects.

**Library: Lodash**

Lodash is a popular JavaScript library that provides a wide range of utility functions, including equality checks. In this benchmark, the `isEqual` function from Lodash is used to compare the two object structures. The inclusion of Lodash adds an external dependency to the benchmark execution environment.

**Special JS Feature/Syntax: None**

Neither test case uses any special JavaScript features or syntax that requires a deeper understanding of the language.

**Other Alternatives**

If you prefer not to use a library like Lodash, you could implement your own equality checks using JavaScript's built-in functions and data structures. This approach would require more code and manual testing, but it can provide more control over the comparison process.

Alternatively, you could consider using other libraries or frameworks that offer optimized equality checks, such as TypeScript's `EqualityCheck` function or a custom implementation based on hash codes.

In terms of benchmarking tools and alternatives to MeasureThat.net, some popular options include:

* JavaScriptPerf: A simple tool for running JavaScript benchmarks.
* jsperf: Another popular tool for running JavaScript benchmarks.
* Benchmark.js: A high-performance benchmarking library for Node.js and browser environments.
* TypeScript's built-in benchmarking tools: TypeScript provides a set of built-in functions and macros for writing and running benchmarks.

Ultimately, the choice of benchmarking tool and approach depends on your specific needs, experience, and preferences.

Related benchmarks:

compare lodash isequal at 5 levels deep (version: 0)

compare lodash isequal at 5 levels deep

Comparing performance of: isEqual vs JSON.stringify

Created: 6 years ago by: Guest

Jump to the latest result

isEqual

JSON.stringify

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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