Benchmark: Test Object - MeasureThat.net

Script Preparation code:

var colorsObj = {};
var n = 30;
var charsHashStrLen = 64;
var charsColorStrLen = 6;
var charsHash = 'abcdefghijklmnopqrstuvwxyz0123456789';
var charsColor = '0123456789';
var charsHashLen = charsHash.length;
var charsColorLen = charsColor.length;
for(let k = 0; k < n; k++) {
    let randomHash = '';
    let randomColor = '#';
    for(let i = 0; i < charsHashStrLen; i++) {
        randomHash += charsHash.charAt(Math.floor(Math.random() * charsHashLen));
    }
    for(let i = 0; i < charsColorStrLen; i++) {
        randomColor += charsColor.charAt(Math.floor(Math.random() * charsColorLen));
    }
    colorsObj[randomHash] = randomColor;
}
colorsObj['zlno0t6tz7z5ajb3trec23u08v99g8k8eq15ny43v6gjbh2dyec9gwnagg42biiw'] = '#111111';

Tests:

Object.hasOwn
Object.hasOwn(colorsObj, 'zlno0t6tz7z5ajb3trec23u08v99g8k8eq15ny43v6gjbh2dyec9gwnagg42biiw');
colorsObj.hasOwnProperty
colorsObj.hasOwnProperty('zlno0t6tz7z5ajb3trec23u08v99g8k8eq15ny43v6gjbh2dyec9gwnagg42biiw');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.hasOwn
colorsObj.hasOwnProperty

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

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

**Benchmark Definition**

The benchmark definition is an object that describes the test scenario. It contains two properties:

* `Name`: A human-readable name for the benchmark, which in this case is "Test Object".
* `Description`: A brief description of the benchmark, but it appears to be empty or irrelevant (`"asd"`).

The actual test code is provided in the `Script Preparation Code` property. It creates an object `colorsObj` with a fixed number of properties (30) and assigns random values to them.

**Options Compared**

The benchmark compares two options:

1. **Object.hasOwn**: This method checks whether an object has a property with the given name, returning true if it does.
2. **colorsObj.hasOwnProperty**: This method is similar to `Object.hasOwn`, but it operates on the specific `colorsObj` object and its own prototype chain.

**Pros and Cons of Each Approach**

* `Object.hasOwn`:
	+ Pros: It's a built-in, standardized method that's more efficient and reliable.
	+ Cons: It might not work correctly in certain edge cases or when dealing with objects that have complex prototypes.
* `colorsObj.hasOwnProperty`: This is a method-specific implementation, which can be beneficial for specific use cases where the object has a controlled prototype chain. However, it may lead to platform-dependent behavior and less maintainable code.

**Other Considerations**

Since the benchmark uses a fixed number of properties in `colorsObj`, there are potential issues with the data distribution and statistical significance of the results. Additionally, using a single random value generation approach for all properties might introduce bias and skew the results.

**Library and Special JS Features Used**

There is no explicit library mentioned in the benchmark definition or individual test cases. However, it's essential to note that some modern browsers (like Chrome) may optimize certain methods or use specialized implementations for performance-critical code.

**Special JS Feature/Syntax Used**

The only special syntax used here is the template literal feature (`let randomHash = '';for(let i = 0; i < charsHashStrLen; i++) {\r\n    randomHash += charsHash.charAt(Math.floor(Math.random() * charsHashLen));\r\n}\r\n`), which allows for string interpolation.

**Alternatives**

If you were to recreate this benchmark or create a similar one, consider the following alternatives:

1. Use a more robust data generation approach (e.g., random number generators with better distribution).
2. Employ a more statistically significant test setup.
3. Consider using a different testing framework that allows for more precise control over the execution environment and platform dependencies.

Keep in mind that this is just an analysis based on the provided information, and actual performance differences between `Object.hasOwn` and `colorsObj.hasOwnProperty` may vary depending on various factors such as browser version, CPU architecture, and system configuration.

Related benchmarks:

Test Object (version: 0)

asd

Comparing performance of: Object.hasOwn vs colorsObj.hasOwnProperty

Created: 3 years ago by: Registered User

Jump to the latest result

Object.hasOwn

colorsObj.hasOwnProperty

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):