Benchmark: Kolbey's test - MeasureThat.net

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var o = {c:3,d:4}

Tests:

_.set
_.set(o, 'a') _.set(o, 'b')
regular assign
o.a = 1; o.b = 2;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.set
regular assign

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):

LLMs can make mistakes. Check important info.

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

**Benchmark Definition**

The benchmark is defined by two scripts:

1. `var o = {c:3,d:4}` - This script prepares an object `o` with two properties, `c` and `d`, both initialized to 3 and 4 respectively.
2. `_.set(o, 'a')\r\n_.set(o, 'b')` - This script calls the `_set` function from the Lodash library on the object `o`. The `_set` function sets a value for a given key in the object.

**Options Compared**

The benchmark compares two approaches:

1. **Regular Assignment**: `o.a = 1;\r\no.b = 2;`
2. **Lodash's `_set` Function**: `_.set(o, 'a')\r\n_.set(o, 'b')`

**Pros and Cons of Each Approach**

1. **Regular Assignment**:
	* Pros: Simple, fast, and efficient.
	* Cons: May not be as readable or maintainable for complex assignments.
2. **Lodash's `_set` Function**:
	* Pros: Provides a way to set values in an object without directly modifying the original object.
	* Cons: Adds overhead due to function call and may not be as fast as direct assignment.

**Other Considerations**

* The benchmark uses Lodash library, which provides a utility function for setting values in objects. This library is not included in the JavaScript core and adds extra complexity to the benchmark.
* There are no special JavaScript features or syntax being tested in this benchmark.

**Alternative Approaches**

Other approaches to set values in an object could include:

1. Direct assignment: `o.a = 1;\r\no.b = 2;` (as shown in the benchmark)
2. Using a property descriptor: `{ [Symbol.for('a')]: 1, [Symbol.for('b')]: 2 }`
3. Using a library like Immutable.js or Ramda, which provide immutable data structures and functions for setting values.

Overall, the benchmark is testing the performance of two approaches to set values in an object: regular assignment versus using Lodash's `_set` function.

Latest run results:

Run details: (Test run date: 6 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36

Browser/OS: Chrome 66 on Mac OS X 10.13.5

View result in a separate tab

Test name	Executions per second
_.set	1095638.4 Ops/sec
regular assign	6871695.5 Ops/sec

Related benchmarks:

Kolbey's test (version: 0)

Comparing performance of: _.set vs regular assign

Created: 6 years ago by: Guest

Jump to the latest result

_.set

regular assign

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):