Benchmark: Lodash get vs Javascript

HTML Preparation code:

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

Script Preparation code:

let detailsCon = {
    images: [{
        imageUrl: 'Test'
    }]
};

Tests:

Lodash
let detailsCon = { images: [{ imageUrl: 'Test' }] }; let ldValue = _.get(detailsCon, 'images[0].imageUrl', '')
Javascript
let detailsCon = { images: [{ imageUrl: 'Test' }] }; let imgSrc = detailsCon && detailsCon.images && detailsCon.images[0] && detailsCon.images[0].imageUrl ? detailsCon.images[0].imageUrl : '';

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash
Javascript

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36

Browser/OS: Chrome 84 on Windows

View result in a separate tab

Test name	Executions per second
Lodash	1143647.0 Ops/sec
Javascript	114911544.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark definition, test cases, and latest benchmark results to explain what's being tested and the pros and cons of different approaches.

**Benchmark Definition**

The benchmark is comparing two approaches to access nested properties in an object:

1. **Lodash**: Using the `_.get()` method from the Lodash library.
2. **JavaScript (Native)**: Using direct property access with optional chaining (`?.`).

**Script Preparation Code and Html Preparation Code**

The script preparation code defines a JavaScript object `detailsCon` with nested properties:
```javascript
let detailsCon = {
  images: [
    { imageUrl: 'Test' }
  ]
};
```
The html preparation code includes the Lodash library in the HTML file.

**Individual Test Cases**

There are two test cases:

1. **Lodash**
```javascript
let ldValue = _.get(detailsCon, 'images[0].imageUrl', '');
```
This code uses `_.get()` to access the `imageUrl` property of the first element in the `images` array, or an empty string if the property doesn't exist.

2. **JavaScript (Native)**
```javascript
let imgSrc = detailsCon && detailsCon.images && detailsCon.images[0] && detailsCon.images[0].imageUrl ? 
            detailsCon.images[0].imageUrl : '';
```
This code uses optional chaining (`?.`) to access the `imageUrl` property of the first element in the `images` array, or an empty string if any part of the chain is null or undefined.

**Pros and Cons**

1. **Lodash (`.get()` method)**:
	* Pros: concise and expressive way to access nested properties.
	* Cons: adds an external dependency (Lodash library), which may not be desirable for smaller projects or those with specific security requirements.
2. **JavaScript (Native) - Optional Chaining (`?.`)**:
	* Pros: doesn't add any external dependencies, is part of the modern JavaScript syntax, and can improve code readability.
	* Cons: requires support for optional chaining in the target browsers or environments.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a set of functional programming helpers, including the `_.get()` method. It's widely used for its concise and expressive way to perform common tasks like data manipulation, iteration, and function composition.

**Special JS Feature: Optional Chaining (`?.`)**

Optional chaining is a relatively recent addition to the JavaScript language (introduced in ECMAScript 2020). It allows you to access nested properties or call methods on objects with optional chaining, preventing null pointer exceptions. The syntax `obj.property?.childProperty` returns the value of `childProperty` if it exists; otherwise, it returns undefined.

**Other Alternatives**

If you don't want to use Lodash or prefer a more native JavaScript approach, you could consider using other alternatives like:

* Using `in` operator for property access (e.g., `detailsCon.images[0].imageUrl`)
* Using `hasOwnProperty()` method on objects (e.g., `detailsCon.hasOwnProperty('images[0].imageUrl')`)
* Implementing custom nested property access functions

Keep in mind that each alternative has its own trade-offs and may not offer the same level of conciseness or expressiveness as Lodash's `.get()` method.

Related benchmarks:

Lodash get vs Javascript (version: 0)

Lodash get vs Javascript

Comparing performance of: Lodash vs Javascript

Created: 4 years ago by: Guest

Jump to the latest result

Lodash

Javascript

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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