Benchmark: Lodash test suite

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 = {a:{c:1},b:[{v:3},{f:2}]};

Tests:

Native
let a = 0; if(obj && obj.b && obj.b[0]){ a = obj.b[0].v; }
Lodash
let a = _.get(obj,"b[0].v",null);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
Lodash

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 break down the benchmark and explain what's being tested.

**What is being tested?**

The benchmark compares two ways of retrieving a property from an object using JavaScript:

1. The **native way**: Using the `obj && obj.b && obj.b[0]` syntax to check if the object exists and has a property at index 0, and then accessing that property.
2. The **Lodash safe way**: Using the `_get` function from Lodash library to safely retrieve the property.

**Options compared**

The two options being compared are:

* `obj && obj.b && obj.b[0]`
* `_get(obj, "b[0].v", null)`

**Pros and Cons of each approach:**

1. **Native way**:
	* Pros:
		+ Lightweight and efficient, as it only checks for the existence of the object and property.
		+ Faster execution time, as it doesn't require an additional function call.
	* Cons:
		+ May be less readable and maintainable, especially in more complex scenarios.
		+ Can lead to errors if the object or property structure changes unexpectedly.
2. **Lodash safe way**:
	* Pros:
		+ More readable and maintainable, as it clearly expresses the intent of safely retrieving a property.
		+ Reduces errors caused by unexpected object or property structure changes.
	* Cons:
		+ Slower execution time, due to the additional function call.

**Lodash library**

The Lodash library provides various utility functions for functional programming and data manipulation. In this case, `_get` is a function that safely retrieves a value from an object by providing a default value if the property does not exist.

**Special JS feature or syntax**

There isn't any specific JavaScript feature or syntax mentioned in this benchmark. However, it's worth noting that the `let a = 0;` line declares a variable `a` with an initial value of 0, which is a common practice in JavaScript.

**Other alternatives**

If you wanted to test other ways of retrieving properties from objects, some alternative approaches could be:

* Using the bracket notation (`obj["b[0].v"]`) instead of dot notation or safe functions like `_get`.
* Using a library like jQuery (which has its own way of safely retrieving attributes) or a different utility library.
* Implementing custom logic for retrieving properties from objects.

Keep in mind that these alternatives would change the benchmark's focus and results, so it's essential to choose the approach that best represents your use case.

Related benchmarks:

Lodash test suite (version: 0)

Test lodash get vs (safe) native way of retrieving property

Comparing performance of: Native vs Lodash

Created: 6 years ago by: Guest

Jump to the latest result

Native

Lodash

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):