Benchmark: loadsh vs === - MeasureThat.net

HTML Preparation code:

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

Script Preparation code:

window.a = 2
window.b = 2

Tests:

_.isEqual
_.isEqual(a, b)
===
a === b

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.isEqual
===

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.1 Mobile/15E148 Safari/604.1

Browser/OS: Mobile Safari 15 on iOS 15.1

View result in a separate tab

Test name	Executions per second
_.isEqual	3138683.2 Ops/sec
===	4658521.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark definition and test cases for you.

**Benchmark Definition**

The benchmark definition is a JSON object that contains information about the benchmark to be run. The key fields are:

* `Name`: A human-readable name for the benchmark (in this case, "loadsh vs ===").
* `Description`: An optional field with a brief description of the benchmark.
* `Script Preparation Code`: A JavaScript code snippet that is executed before running the benchmark. In this case, it initializes two variables, `a` and `b`, to 2.
* `Html Preparation Code`: A HTML code snippet that includes a script tag referencing a specific version of the Lodash library (v4.17.4).

**Individual Test Cases**

The individual test cases are an array of objects that define each test case for the benchmark. Each object contains:

* `Benchmark Definition`: A string representing the actual JavaScript function or expression to be executed as part of the benchmark.
* `Test Name`: A human-readable name for the test case (in this case, "_.isEqual" and "==").

**Library: Lodash**

The Lodash library is a popular utility library for JavaScript that provides a wide range of functions for tasks such as string manipulation, array processing, and more. In this benchmark, the `lodash` library is included via the provided HTML code snippet.

The `_.isEqual(a, b)` function is a specific implementation of the `isEqual` function provided by Lodash, which checks whether two values are equal using a deep equality check.

**Special JavaScript Feature: String Interpolation**

In the `Script Preparation Code`, there is a string interpolation using backticks (`) to insert values into a string. This is a syntax feature introduced in ECMAScript 2015 (ES6). It allows you to embed expressions inside strings, making it easier to generate dynamic content.

**Pros and Cons of Different Approaches**

The benchmark compares two approaches:

1. Using the `===` operator (equality comparison) versus
2. Using the `_.isEqual(a, b)` function from Lodash.

**Pros:**

* Using `===` is a simple and straightforward approach that leverages JavaScript's built-in equality checks.
* It may be faster since it doesn't require an additional library call or the overhead of a deep equality check.

**Cons:**

* May not handle all edge cases, such as comparing objects with circular references or complex data structures.
* Requires explicit usage of `===` in the test case implementation.

**Using Lodash's `_.isEqual(a, b)` function:**

Pros:

* Handles more edge cases and complex data structures than a simple `===` comparison.
* Is a reusable utility function that can be used elsewhere in the project.

Cons:

* Requires an additional library call, which may introduce overhead or dependencies not present with the pure `===` approach.
* May be slower due to the overhead of the deep equality check.

**Other Alternatives**

If you wanted to run this benchmark on a different platform or environment, you could use alternative JavaScript engines or runtimes, such as:

* Node.js (for server-side execution)
* Browser-specific engines like V8 (used by Google Chrome and Mozilla Firefox)
* Other JavaScript interpreters or virtual machines

Keep in mind that the performance results may vary depending on the specific implementation, environment, and hardware used.

Related benchmarks:

loadsh vs === (version: 0)

Comparing performance of: _.isEqual vs ===

Created: 3 years ago by: Guest

Jump to the latest result

_.isEqual

===

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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