Benchmark: dataset - MeasureThat.net

HTML Preparation code:

<div id='test' class="test" data-test='test'></div>

Script Preparation code:


var el = document.getElementById('test')

Tests:

direct
el.dataset.test;
with string
el.dataset['test'];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
direct
with string

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/131.0.0.0 Safari/537.36

Browser/OS: Chrome 131 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
direct	12840927.0 Ops/sec
with string	12786073.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark and explain what's being tested, compared, and some pros/cons of different approaches.

**Benchmark Overview**

The benchmark is designed to compare two ways of accessing a dataset property in JavaScript: using the dot notation (`el.dataset.test;`) and using the bracket notation with a string (`el.dataset['test'];`).

**What's Being Tested?**

In this benchmark, we have two individual test cases:

1. **Direct**: `el.dataset.test;`
2. **With String**: `el.dataset['test'];`

Both tests measure the performance of accessing a dataset property using the specified syntax.

**Comparison Options**

The comparison options are:

* Dot notation (`el.dataset.test;`)
* Bracket notation with a string (`el.dataset['test'];`)

**Pros and Cons**

### Dot Notation

Pros:

* Typically faster and more readable
* Less error-prone, as it's harder to accidentally access the wrong property using the dot notation

Cons:

* May not work in older browsers that don't support dataset attributes (although this is unlikely with modern browsers)
* Can be less flexible if you need to use a dynamic property name

### Bracket Notation with String

Pros:

* More flexible, as it can be used with both string and non-string values
* Works in older browsers that don't support dataset attributes

Cons:

* Typically slower due to the overhead of using a bracket notation
* Can lead to typos or other errors if not used carefully (e.g., accessing `el.dataset['test']` instead of `el.dataset.test;`)

**Library and Purpose**

In this benchmark, we don't see any specific JavaScript library being used. However, it's likely that the dataset attribute is a modern web feature that's supported by most browsers.

If you're interested in exploring other alternatives or libraries, here are some options:

* For accessing dataset attributes, consider using a library like `dataset-attribute` (a polyfill for older browsers).
* For benchmarking JavaScript performance, consider using a tool like WebPageTest or BenchmarkJS.
* For testing specific JavaScript features or syntax, consider using a tool like JSLint or ESLint.

**Special JS Feature**

There isn't any special JS feature being tested in this benchmark. The comparison is focused on the syntax for accessing dataset attributes.

Let me know if you have any further questions!

Related benchmarks:

dataset (version: 0)

Banchmark dataset with string vs direct

Comparing performance of: direct vs with string

Created: 3 years ago by: Guest

Jump to the latest result

direct

with string

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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