Benchmark: Get object value by Path

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

Object.byString = function(o, s) {
    s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
    s = s.replace(/^\./, ''); // strip a leading dot
    var a = s.split('.');
    for (var i = 0, n = a.length; i < n; ++i) {
        var k = a[i];
        if (k in o) {
            o = o[k];
        } else {
            return;
        }
    }
    return o;
}

Tests:

Case 1
Object.byString({ a: 1 }, 'a');
Case 2
Object.byString({ a: 1 }, 'a');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Case 1
Case 2

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36

Browser/OS: Chrome 95 on Linux

View result in a separate tab

Test name	Executions per second
Case 1	954271.6 Ops/sec
Case 2	970146.6 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the world of MeasureThat.net and explore what's being tested in this benchmark.

**Benchmark Definition**

The benchmark definition is provided as a JSON object, which defines a JavaScript function called `Object.byString`. This function takes two arguments: an object `o` and a string `s`. The function is designed to retrieve a value from the object using the provided string path. Here's a breakdown of what's being tested:

* The `Object.byString` function is used to test how different browsers and platforms perform when accessing nested properties in an object.
* The input object is `{a: 1}`, and the property path is `'a'`. However, as we'll see later, there are variations in this benchmark that test different paths.

**Options Compared**

In this benchmark, two main options are being compared:

1. **Lodash's `get()` method**: Lodash is a popular JavaScript library that provides utility functions for common tasks. The `get()` method is used to access nested properties in an object. By using Lodash, the benchmark ensures consistent behavior across different browsers and platforms.
2. **Native JavaScript implementation**: The native JavaScript implementation uses the `Object.byString` function provided by MeasureThat.net. This approach relies on the browser's built-in support for accessing nested properties.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Lodash's `get()` method**:
	+ Pros:
		- Consistent behavior across different browsers and platforms.
		- Provides a simple and intuitive way to access nested properties.
	+ Cons:
		- Requires an additional dependency (Lodash) for the benchmark.
		- May introduce overhead due to the library's presence in the test environment.
* **Native JavaScript implementation**:
	+ Pros:
		- Eliminates the need for an additional dependency (Lodash).
		- Can provide better performance, as it relies on native browser support.
	+ Cons:
		- Behavior may vary across different browsers and platforms.
		- Requires careful consideration of edge cases and platform-specific issues.

**Library: Lodash**

Lodash is a popular JavaScript library that provides a wide range of utility functions for common tasks. The `get()` method is used to access nested properties in an object, which makes it an ideal choice for this benchmark.

In the provided JSON, you can see that the `Html Preparation Code` includes a link to the Lodash CDN, ensuring that the library is available during testing.

**Special JS Feature: ES6 Modules**

The benchmark definition uses ES6 modules (import/export syntax) to define the `Object.byString` function. This feature is supported in modern browsers and provides a more concise way of defining functions and variables.

While not all browsers support ES6 modules, MeasureThat.net likely relies on a subset of modern browsers that do. If you were to run this benchmark in an older browser that doesn't support ES6 modules, you might encounter issues with the code syntax.

**Alternatives**

If you're interested in exploring alternative approaches or testing other scenarios, here are some options:

* **Use a different library**: Consider using another utility function library like Moment.js (for date-related tasks) or Underscore.js (for functional programming tasks).
* **Native JavaScript implementation variations**: Experiment with different native JavaScript implementations for accessing nested properties, such as `Object.prototype.hasOwnProperty.call()` or `in` operator.
* **Browser-specific optimizations**: Test optimized versions of the benchmark for specific browsers, taking into account platform-specific features and performance optimizations.

I hope this explanation helps you understand what's being tested in MeasureThat.net!

Related benchmarks:

Get object value by Path (version: 0)

Comparing performance of: Case 1 vs Case 2

Created: 3 years ago by: Guest

Jump to the latest result

Case 1

Case 2

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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