Benchmark: lodash findkey vs Object keys

HTML Preparation code:

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

Script Preparation code:

var partnerType = {a: 'na', b: 'pos'}
var pointOfSaleType = 'na'

Tests:

Object keys
Object.keys(partnerType)[Object.values(partnerType).indexOf(pointOfSaleType)];
Lodash test
_.findKey(partnerType, item => item === pointOfSaleType);

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Lodash test

8.1M/s

Object keys

5.6M/s

Fastest: Lodash test (1.4x faster)

View exact numbers

✓ Lodash test: 8,077,582 ops/sec
• Object keys: 5,602,156 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object keys
Lodash test

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Mac OS X 10.15.7

View result in a separate tab

Object keys

60.2M/s

Lodash test

53.1M/s

View exact numbers

Test name	Executions per second
✓ Object keys	60,204,580 Ops/sec
Lodash test	53,087,688 Ops/sec

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 provided JSON represents two individual test cases, each comparing the performance of using `Object.keys()` vs `_.findKey()` (from Lodash library) to find the value of a specific key in an object. The objects being used are `partnerType` and `pointOfSaleType`.

**Options compared:**

There are two options being compared:

1. **Object keys**: Using the built-in `Object.keys()` method to get an array of keys from the `partnerType` object, and then using the `indexOf()` method to find the index of the value of `pointOfSaleType`.
2. **Lodash findKey**: Using Lodash's `_findKey()` function to directly find the key with a specific value.

**Pros and Cons:**

1. **Object keys**:
	* Pros: Native JavaScript function, likely faster since it doesn't rely on an external library.
	* Cons: Requires two separate operations (getting keys and finding index), which can be slower than using a single method.
2. **Lodash findKey**:
	* Pros: Faster since it's implemented in C++ and optimized for performance, uses fewer operations compared to `Object.keys()`.
	* Cons: Relies on an external library (Lodash), which may not be present or up-to-date in all environments.

**Library and purpose:**

The Lodash library is a popular JavaScript utility library that provides a wide range of functions for various tasks, such as array manipulation, object manipulation, string manipulation, and more. In this case, the `_findKey()` function is used to find the key with a specific value in an object.

**Special JS feature or syntax:**

There are no special JS features or syntaxes being used in these test cases. The code is standard JavaScript syntax.

**Other alternatives:**

If `Object.keys()` and Lodash's `_findKey()` aren't suitable, other alternatives could be:

* Using a custom implementation of the find key function.
* Using a different library that provides similar functionality, such as Moment.js or Underscore.js.
* Using a different approach altogether, such as using a hash table to store the object keys and values.

Note: The benchmark's purpose is to compare the performance of these two approaches in JavaScript, not to provide an exhaustive list of alternatives.

lodash findkey vs Object keys (version: 0) Benchmark.js

Comparing performance of: `Object keys vs Lodash test`

Created: 5 years ago by: Guest

Go to the latest result

Object keys

Lodash test

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

lodash findkey vs Object keys (version: 0) Benchmark.js

Comparing performance of: Object keys vs Lodash test

Created: 5 years ago by: Guest

Go to the latest result

Object keys

Lodash test

Historical Performance Data aggregated from 5 community runs

Desktop Results:

Chrome 5 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

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Comparing performance of: `Object keys vs Lodash test`