Benchmark: Lodash.get vs Property df

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var person = {name: 'Frederick', lastName: [2, 4, 5] };

Tests:

Lodash get
_.get(person.lastName, '[0].length', 0);
Native
person.lastName ? _.first(person.lastName).length : 0;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash get
Native

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation of what's being tested on the provided JSON.

**Benchmark Overview**

The benchmark measures the performance difference between two approaches to access an element within an array: using the `_.get` method from Lodash and accessing the element directly through property chaining (`person.lastName ? _.first(person.lastName).length : 0;`).

**Options Compared**

There are two options being compared:

1. **Lodash.get**: This approach uses the `_.get` method from Lodash, a popular JavaScript utility library, to access the desired element within an array. Specifically, it's using `_.get(person.lastName, '[0].length', 0)` to get the length of the first element in the `lastName` array.
2. **Native Property Chaining**: This approach uses property chaining (`person.lastName ? _.first(person.lastName).length : 0;`) to access the desired element within an array.

**Pros and Cons**

**Lodash.get**

Pros:

* Simplifies code and reduces verbosity
* Provides a clear and explicit way to access nested elements in arrays

Cons:

* Requires Lodash library to be included, which may add overhead due to its size
* May not perform as well as native property chaining in certain cases (e.g., when the array is very large)

**Native Property Chaining**

Pros:

* No additional libraries or overhead required
* Can potentially perform better than `_.get` for large arrays

Cons:

* Requires explicit chaining of properties (`person.lastName ? _.first(person.lastName).length : 0;`)
* May require more code and be less readable for complex nested access scenarios

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of useful functions, including `_.get`. It's designed to simplify common tasks and make code more concise. The inclusion of Lodash in the benchmark adds overhead due to its size, but also provides a clear and explicit way to access nested elements in arrays.

**Special JS Feature/Syntax**

There is no special JavaScript feature or syntax being used in this benchmark beyond what's typical for accessing array elements using property chaining.

**Other Alternatives**

If you were to implement this benchmark without Lodash, you could use other libraries like Underscore.js or create a custom solution. Alternatively, if you wanted to compare the performance of native property chaining without using any additional libraries, you could modify the script preparation code to simply access the desired element directly.

For example:
```javascript
var person = {name: 'Frederick', lastName: [2, 4, 5] };
console.log(person.lastName[0].length);
```
Keep in mind that this approach would not use any library and would only rely on native JavaScript features.

Related benchmarks:

Lodash.get vs Property df (version: 0)

Comparing performance of: Lodash get vs Native

Created: 4 years ago by: Guest

Jump to the latest result

Lodash get

Native

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):