Benchmark: Measure Single Text 222

HTML Preparation code:

<div>Hello World</div>

Script Preparation code:

const canvas = document.createElement('canvas')
window.context = canvas.getContext('2d')

Tests:

offsetWidth
document.querySelector('div').offsetWidth
getBoundingClientRect
document.querySelector('div').getBoundingClientRect().width
canvas
window.context.measureText('Hello') window.context.measureText('world')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
offsetWidth
getBoundingClientRect
canvas

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

**Benchmark Overview**

The provided JSON represents a JavaScript microbenchmarking test, where users can create and run their own benchmarks to measure various JavaScript scenarios. The current benchmark consists of three individual test cases:

1. Measuring the `offsetWidth` property of an HTML element.
2. Measuring the `getBoundingClientRect().width` property of an HTML element.
3. Measuring the `measureText()` method of a Canvas context.

**Test Cases**

Each test case measures a different aspect of JavaScript performance. Here's what's being compared:

1. **offsetWidth**: This test measures how quickly you can retrieve the width of an HTML element using its offsetWidth property. The offsetWidth property returns the width of an element, excluding any borders or padding.
2. **getBoundingClientRect().width**: This test measures how quickly you can retrieve the width of an HTML element using its getBoundingClientRect() method and accessing the `width` property within it. GetBoundingClientRect() provides more detailed information about an element's position and size relative to the viewport.
3. **canvas**: This test measures how quickly you can create two TextMeasurements (measureText()) objects, one for each character in a string ('Hello' and 'world'). The measureText() method returns an object containing information about the width of the text.

**Library**

None, as this benchmark does not rely on any specific JavaScript libraries. It only uses built-in browser APIs.

**Special JS Features/Syntax**

There are no special JavaScript features or syntax being tested in these benchmarks. They focus solely on measuring performance using native browser APIs.

**Pros and Cons of Different Approaches**

Here's a brief overview of the pros and cons of each approach:

1. **offsetWidth**: This method is generally fast and straightforward. However, it might not provide accurate results if the element has complex layout or if there are other elements affecting its offsetWidth.
2. **getBoundingClientRect().width**: While this method provides more detailed information about an element's size, it can be slower due to the additional calculation required to determine the width.
3. **canvas**: This approach is likely to be slower than the first two methods since it requires creating and manipulating a Canvas context, which involves more overhead.

**Other Alternatives**

If you're looking for alternatives to MeasureThat.net, consider:

1. **BenchmarkDotNet**: A popular open-source benchmarking library for .NET and JavaScript.
2. **js-benchmark**: A lightweight JavaScript benchmarking library that provides a simple API for creating benchmarks.
3. **V8 Benchmark Suite**: An official benchmarking suite developed by Google for the V8 JavaScript engine.

Keep in mind that each of these alternatives has its own strengths and weaknesses, so it's essential to evaluate their features and documentation before selecting one that suits your needs.

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36

Browser/OS: Chrome 100 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
offsetWidth	434630.8 Ops/sec
getBoundingClientRect	453975.8 Ops/sec
canvas	385204.2 Ops/sec

Related benchmarks:

Measure Single Text 222 (version: 0)

Using various methods to measure a single string of text.

Comparing performance of: offsetWidth vs getBoundingClientRect vs canvas

Created: 2 years ago by: Guest

Jump to the latest result

offsetWidth

getBoundingClientRect

canvas

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):