Benchmark: lodash set vs spread

HTML Preparation code:

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

Tests:

lodash set
const a = {}; _.set(a,".b.c", "what");
spread
const a = {}; a.b = { ...a.b, c: "what" };

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash set
spread

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's break down the provided JSON data and explain what's being tested.

**What is being tested?**

The benchmark is comparing two approaches to update an object: using the `_.set` function from Lodash library, and using the spread operator (`...`) on the object itself.

**Options compared**

* `_.set(a, ".b.c", "what")`: This approach uses the `_.set` function from Lodash to update a nested property on the object. The dot notation is used to specify the path to the property.
* `a.b = { ...a.b, c: "what" };`: This approach uses the spread operator (`...`) to create a new object that updates the existing `b` property with the new value.

**Pros and Cons of each approach**

* Using `_.set(a, ".b.c", "what")`:
	+ Pros:
		- Concise and readable code
		- Less error-prone than dot notation when dealing with nested objects
	+ Cons:
		- Requires Lodash library to be included in the test environment
		- Might not work as expected if the object's structure changes dynamically
* Using spread operator (`a.b = { ...a.b, c: "what" };`):
	+ Pros:
		- Fast and efficient way to update nested properties
		- Doesn't require any additional libraries
	+ Cons:
		- Less readable code compared to using `_.set`
		- Might not work as expected if the object's structure changes dynamically

**Library used**

* Lodash library: A popular utility library for JavaScript that provides a wide range of functional programming helpers. In this case, the `_set` function is used to update nested properties.

**Special JS feature or syntax**

* None mentioned in the provided data. However, using spread operator (`...`) is a modern JavaScript feature introduced in ECMAScript 2018 (ES2018).

**Other alternatives**

* Other ways to update nested objects could include:
	+ Using `Object.assign()` method
	+ Creating a new object with `Object.create()`
	+ Using a library like Immutable.js

Note that the choice of approach depends on the specific use case, personal preference, and performance requirements.

Related benchmarks:

lodash set vs spread (version: 0)

Comparing performance of: lodash set vs spread

Created: 5 years ago by: Guest

Jump to the latest result

lodash set

spread

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):