Benchmark: lodash each vs object.entries

HTML Preparation code:

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

Script Preparation code:

var values = {a: 30310, b: 100303, c: 3040494};

Tests:

lodash.each
let count = 0; _.each(values, function(v,k) { if (v != null) { count+= v; } })
native
let count = 0; for (const [k,v] of Object.entries(values)) { if (v != null) { count+= v } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash.each
native

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks!

**What is being tested?**

The provided JSON represents two benchmark test cases:

1. `lodash.each`: This test case measures the performance of Lodash's `each` function, which iterates over an object and performs a callback operation on each key-value pair.
2. `native`: This test case measures the performance of a native JavaScript loop using `Object.entries()` to iterate over an object.

**Options compared**

The two options being compared are:

* **Lodash's `each` function**: A popular utility library that provides a convenient way to iterate over objects and perform operations on each key-value pair.
* **Native JavaScript loop using `Object.entries()`**: A built-in method for iterating over objects, which is implemented in the browser engine.

**Pros and cons of each approach**

* **Lodash's `each` function**:
	+ Pros: Convenient to use, provides a familiar syntax, and often has better performance due to optimized internal loops.
	+ Cons: Adds external dependency (the Lodash library), can be slower than native implementations if not optimized correctly.
* **Native JavaScript loop using `Object.entries()`**:
	+ Pros: No external dependencies, highly optimized by the browser engine, and suitable for modern JavaScript environments.
	+ Cons: May have a steeper learning curve due to its more functional programming style, and might require additional setup (e.g., importing `Object.entries`).

**Other considerations**

* **Library usage**: The test case uses Lodash's `each` function, which is not the default JavaScript method. While this adds some overhead, it also provides a convenient and familiar API.
* **Special JS features or syntax**: There are no special features or syntaxes used in these test cases.

**Alternatives**

Other alternatives for iterating over objects could include:

* `forEach()`: Another built-in method for iterating over arrays and objects.
* `for...in` loop: A traditional, manual way to iterate over object properties.
* Other libraries like **Underscore.js**, which provides similar functionality to Lodash.

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

Related benchmarks:

lodash each vs object.entries (version: 0)

Comparing performance of: lodash.each vs native

Created: 3 years ago by: Guest

Jump to the latest result

lodash.each

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):