Benchmark: lodash each vs loop on objects

HTML Preparation code:

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

Script Preparation code:

var person = JSON.stringify({
  first_name: "first",
  last_name: "last",
  age: 5,
  random: "19284984343",
})
var ourObj = { a12345: person, b1234: person, c: person, d: person }

Tests:

lodash
_.chain(ourObj) .map((val, key) => { const json = JSON.parse(val) return { key: json } }) .filter(Boolean) .value()
vanilla
const arr = [] for (let key in ourObj) { const json = JSON.parse(ourObj[key]) arr.push({key: json}) } arr.filter(Boolean)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
vanilla

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 benchmark and explain what's being tested.

**Benchmark Definition**

The benchmark is designed to compare two approaches: using Lodash's `each` method versus a traditional `for...in` loop with a custom function to process objects.

**Options Compared**

1. **Lodash's `each` method**: This approach uses the `_.each` function from Lodash, which iterates over an object and applies a callback function to each property.
2. **Traditional `for...in` loop**: This approach uses a traditional `for...in` loop to iterate over the properties of the `ourObj` object, parsing the JSON values within.

**Pros and Cons**

1. **Lodash's `each` method**:
	* Pros:
		+ More concise and readable code
		+ Lodash provides a familiar and well-maintained API for iteration
	* Cons:
		+ May introduce additional overhead due to the use of a library
		+ May not be as efficient as a custom loop implementation
2. **Traditional `for...in` loop**:
	* Pros:
		+ No external library dependencies, which can lead to smaller bundle sizes and faster execution
		+ Can be optimized for specific use cases or hardware architectures
	* Cons:
		+ More verbose code compared to the Lodash approach
		+ May require additional setup and maintenance

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, object transformation, and iteration. In this benchmark, Lodash's `each` function is used to iterate over the properties of the `ourObj` object.

**Special JS Feature/Syntax**

This benchmark does not explicitly use any special JavaScript features or syntax that would require specific understanding or interpretation.

**Other Alternatives**

If you prefer a different approach, you could also consider:

1. Using a library like Ramda, which provides a functional programming style for iteration and transformation.
2. Implementing your own custom loop using native `for...in` or `forEach` loops, without relying on Lodash.
3. Using a modern JavaScript feature like `for...of` loops to iterate over object properties.

Keep in mind that the choice of approach depends on your specific use case, performance requirements, and personal preference.

Related benchmarks:

lodash each vs loop on objects (version: 0)

Comparing performance of: lodash vs vanilla

Created: 3 years ago by: Guest

Jump to the latest result

lodash

vanilla

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):