Benchmark: isEmpty xorWith Object.entries vs isequal

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var obj = {firstItem: "ninja turtles", secondItem: 505, thirdItem: {subItem: "Hello", deepItem: {inception: "True"}}}
var obj2 = {thirdItem: {subItem: "Hello", deepItem: {inception: "True"}}, secondItem: 505, firstItem: "ninja turtles"}

Tests:

isEmpty xorWith
var flag = _.isEmpty(_.xorWith(Object.entries(obj), Object.entries(obj2), _.isEqual));
isEqual
var flag = _.isEqual(obj, obj2);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
isEmpty xorWith
isEqual

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser/OS: Chrome 114 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
isEmpty xorWith	399138.1 Ops/sec
isEqual	1166692.9 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down what's being tested in the provided JSON benchmark.

**What is tested?**

The benchmark tests two functions: `_.isEmpty` and `_.isEqual`. Both functions are part of the Lodash library, which provides functional programming helpers for JavaScript.

1. **_isEmpty**: This function checks if an object is empty.
2. **_isEqual**: This function checks if two objects have equal properties with equal values.

**Options compared**

The benchmark compares the performance of two approaches:

**Approach 1: Using `_.xorWith` with `Object.entries`**

In this approach, `_xorWith` is used to create a new array of keys from both input objects (`obj` and `obj2`). The resulting array is then passed to `_.isEmpty`. This approach assumes that the order of properties in an object matters.

**Approach 2: Using `_.isEqual`**

In this approach, `_isEqual` is directly applied to the two input objects (`obj` and `obj2`). This approach does not rely on the order of properties and can handle objects with duplicate keys.

**Pros and cons of each approach**

**Approach 1 (`.xorWith`)**

* Pros:
	+ Can be more efficient if the order of properties matters.
	+ May be faster for large objects with many properties.
* Cons:
	+ Assumes the order of properties matters, which may not always be the case.

**Approach 2 (`.isEqual`)**

* Pros:
	+ Does not rely on the order of properties, making it more flexible and robust.
	+ Can handle objects with duplicate keys.
* Cons:
	+ May be slower for large objects due to the overhead of directly comparing each property.

**Library: Lodash**

Lodash is a popular JavaScript library that provides a collection of functional programming helpers. It's often used for tasks like array manipulation, object iteration, and data transformation.

In this benchmark, Lodash is used to provide the `_.isEmpty` and `_.isEqual` functions, which are used to test the performance of different approaches.

**Special JS feature or syntax**

There doesn't seem to be any specific JavaScript features or syntax being tested in this benchmark. The code only uses standard JavaScript syntax and does not rely on any advanced features like async/await, Promises, or modern ES6+ syntax.

**Other alternatives**

If you need to check if an object is empty or equal, there are other alternatives to Lodash:

* Using the `Object.keys()` method: You can use `Object.keys(obj).length` to check if an object is empty. This approach does not rely on any external libraries.
* Using a simple loop: You can manually iterate over each property of an object and compare its values using a loop.
* Using a custom implementation: You can write your own function to check if an object is empty or equal, using the `Object.keys()` method or other techniques.

However, Lodash's `_.isEmpty` and `_.isEqual` functions are often convenient and efficient solutions for these common tasks.

Related benchmarks:

isEmpty xorWith Object.entries vs isequal (version: 0)

Comparing performance of: isEmpty xorWith vs isEqual

Created: 3 years ago by: Guest

Jump to the latest result

isEmpty xorWith

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):