Benchmark: Underscore and Lodash: isEqual v3

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.0/underscore-min.js'></script>
<script type="text/javascript">
  window.underscore = _;
  _ = null;
</script>

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.min.js'></script>
<script type="text/javascript">
  window.lodash = _;
  _ = null;
</script>

Script Preparation code:

var obj1 = {
  0: {
    1: {
      key: 'one'
  	}
  }
};

var obj1copy = {
  0: {
    1: {
      key: 'one'
  	}
  }
};

var obj2 = {
  0: {
    1: {
      key: 'two'
  	}
  }
};

Tests:

Underscore equal
underscore.isEqual(obj1, obj1copy);
Lodash equal
lodash.isEqual(obj1, obj1copy);
Underscore none equal
underscore.isEqual(obj1, obj2);
Lodash none equal
lodash.isEqual(obj1, obj2);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Underscore equal
Lodash equal
Underscore none equal
Lodash none equal

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 llama3.1:latest, generated one year ago):

LLMs can make mistakes. Check important info.

Let's dive into the benchmark results.

**What is being tested?**

The test cases are comparing the performance of two JavaScript libraries, Underscore.js and Lodash.js, when it comes to checking equality between objects using their respective `isEqual()` functions.

**What options are compared?**

There are four test cases:

1. **Underscore equal**: Checking if two identical objects (`obj1` and `obj1copy`) are equal using Underscore.js's `isEqual()` function.
2. **Lodash equal**: The same as above, but using Lodash.js's `isEqual()` function instead.
3. **Underscore none equal**: Checking if an object (`obj1`) is not equal to a different object (`obj2`) using Underscore.js's `isEqual()` function.
4. **Lodash none equal**: The same as above, but using Lodash.js's `isEqual()` function instead.

**Pros and cons of the approaches:**

Both Underscore.js and Lodash.js are popular utility libraries for JavaScript development. Here are some pros and cons to consider:

* **Underscore.js**:
	+ Pros: Lightweight, widely used, and well-maintained.
	+ Cons: Not as feature-rich as Lodash.js, which might make it less suitable for complex use cases.
* **Lodash.js**:
	+ Pros: More feature-rich than Underscore.js, with additional functionality like currying, partials, and more.
	+ Cons: Heavier library size compared to Underscore.js.

**Other considerations:**

When choosing between these two libraries, consider the following:

* If you need a lightweight solution for simple use cases, Underscore.js might be sufficient. However, if your project requires additional features or is complex, Lodash.js might be a better fit.
* Both libraries have active communities and are well-maintained.

**Test case details:**

The provided test cases are quite straightforward:

1. Two identical objects (`obj1` and `obj1copy`) are compared using both Underscore.js and Lodash.js's `isEqual()` functions.
2. An object (`obj1`) is compared against a different object (`obj2`) using both Underscore.js and Lodash.js's `isEqual()` functions.

**Benchmark results:**

The latest benchmark result shows the execution speed (Executions Per Second) for each test case on an iPhone running iOS 16.1 with Mobile Safari 16. The results are:

* **Underscore equal**: 1688789.875 executions per second
* **Underscore none equal**: 1537883.75 executions per second
* **Lodash equal**: 699372.3125 executions per second
* **Lodash none equal**: 667830.3125 executions per second

These results suggest that Underscore.js's `isEqual()` function performs better than Lodash.js's when checking equality between identical objects, while Lodash.js might be faster for non-equal object comparisons.

Keep in mind that these results are specific to the provided test cases and might not reflect real-world scenarios.

Related benchmarks:

Underscore and Lodash: isEqual v3 (version: 0)

Comparing performance of: Underscore equal vs Lodash equal vs Underscore none equal vs Lodash none equal

Created: 7 years ago by: Guest

Jump to the latest result

Underscore equal

Lodash equal

Underscore none equal

Lodash none equal

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.1:latest, generated one year ago):