Benchmark: Test values #3 - MeasureThat.net

Script Preparation code:

function objectValues1(object) {
   	const t = [];
  
   	for(var key in object) {
   		t.push(object[key]);
    }
   	
  	return t;
}

function objectValues2(object) {
 	return Object.keys(object).map(k => object[k]) 
}

var a = {};
for(let i = 0; i < 500; ++i) {
	a[i] = i + 0.5;
}

Tests:

Test 1
let b = Object.values(a);
Test 2
let b = objectValues1(a);
Test 3
let b = objectValues2(a);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Test 1
Test 2
Test 3

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested, compared, and considered.

**Benchmark Definition**

The benchmark is defined in two parts: Script Preparation Code and Html Preparation Code. The Script Preparation Code defines three functions: `objectValues1`, `objectValues2`, and an empty function (not used). These functions are intended to extract values from an object in different ways.

**Script Preparation Code**

1. `function objectValues1(object) { ... }`: This function creates an array `t` and pushes the values of each key in the input object `object`. It then returns this array.
2. `function objectValues2(object) { ... }`: This function uses the `Object.keys()` method to get an array of keys from the input object, maps over it to get the corresponding values, and returns the resulting array.

The script preparation code also creates a sample object `a` with 500 properties, where each property is assigned a value that increments by 0.5.

**Html Preparation Code**

There is no Html Preparation Code provided, which means the benchmark only runs in the JavaScript environment.

**Individual Test Cases**

There are three test cases:

1. **Test 1**: `let b = Object.values(a);`
	* This line uses the built-in `Object.values()` method to extract the values from the object `a` and assigns them to a new variable `b`.
2. **Test 2**: `let b = objectValues1(a);`
	* This line calls the `objectValues1` function, passing `a` as an argument, and assigns the returned array to a new variable `b`.
3. **Test 3**: `let b = objectValues2(a);`
	* This line calls the `objectValues2` function, passing `a` as an argument, and assigns the returned array to a new variable `b`.

**Options Compared**

The benchmark compares three different approaches to extract values from an object:

1. **Built-in `Object.values()` method**: This approach uses a built-in JavaScript method to get the values of an object.
2. **Custom function `objectValues1`**: This approach defines a custom function that creates an array and pushes the values of each key in the input object.
3. **Custom function `objectValues2`**: This approach defines another custom function that uses `Object.keys()` to get an array of keys, maps over it to get the corresponding values, and returns the resulting array.

**Pros and Cons**

Here are some pros and cons for each approach:

1. **Built-in `Object.values()` method**:
	* Pros: Fast, efficient, and widely supported.
	* Cons: May not be as flexible or customizable as other approaches.
2. **Custom function `objectValues1`**:
	* Pros: Can be customized to suit specific use cases, potentially more readable for some developers.
	* Cons: May be slower than the built-in method due to additional overhead, and may not be as widely supported.
3. **Custom function `objectValues2`**:
	* Pros: Provides a clear understanding of how the values are being extracted, which can be useful in complex scenarios.
	* Cons: May be slower than the built-in method due to additional overhead, and may not be as widely supported.

**Other Considerations**

* **Memory usage**: The custom functions `objectValues1` and `objectValues2` create arrays to store the values, which can increase memory usage compared to using the built-in `Object.values()` method.
* **Browser support**: While the built-in `Object.values()` method is widely supported, the custom functions may not be as widely supported across different browsers.

**Alternative Approaches**

Some alternative approaches could include:

1. Using a library like Lodash or Ramda to provide a more functional programming approach for working with objects.
2. Using a JavaScript framework like React or Angular to leverage built-in features and tools for working with objects.
3. Implementing a custom solution using a different data structure, such as a map or a tree.

Keep in mind that the best approach will depend on the specific requirements and constraints of the project.

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0

Browser/OS: Firefox 73 on Windows

View result in a separate tab

Test name	Executions per second
Test 1	78903.9 Ops/sec
Test 2	3657.9 Ops/sec
Test 3	6541.2 Ops/sec

Related benchmarks:

Test values #3 (version: 0)

Test values

Comparing performance of: Test 1 vs Test 2 vs Test 3

Created: 4 years ago by: Guest

Jump to the latest result

Test 1

Test 2

Test 3

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):