Benchmark: Test 123123123 - MeasureThat.net

Script Preparation code:

var a = document.createElement('div');
var text = document.createTextNode("This just got added");
a.appendChild(text);

Tests:

TextContent
a.textContent
InnerText
a.innerText
TextContent with trim
a.textContent.trim()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
TextContent
InnerText
TextContent with trim

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

**Overview of MeasuringThat.net**

MeasuringThat.net is a website that allows users to create and run JavaScript microbenchmarks, providing valuable insights into the performance of different programming approaches.

**Benchmark Definition JSON**

The provided benchmark definition json represents a test case for measuring the performance of accessing text content in a JavaScript environment. Specifically, it tests three scenarios:

1. `a.textContent`
2. `a.innerText`
3. `a.textContent.trim()`

Each scenario is represented by a separate benchmark definition, which includes script preparation code and HTML preparation code (empty in this case).

**Script Preparation Code**

The script preparation code creates a new `<div>` element and appends a text node with the content "This just got added" to it. This setup allows the test cases to focus on accessing the text content without any additional complexities.

```javascript
var a = document.createElement('div');
var text = document.createTextNode("This just got added");
a.appendChild(text);
```

**Options Compared**

The three test cases compare different approaches for accessing the text content of the element:

1. `textContent`: Returns the raw text content, including whitespace and line breaks.
2. `innerText`: Returns the plain text content without whitespace or line breaks.
3. `textContent.trim()`: Returns the trimmed text content, removing leading and trailing whitespace.

**Pros and Cons**

Here's a brief analysis of each approach:

* `textContent`:
	+ Pros: Simple and straightforward access to text content.
	+ Cons: May not be suitable for use cases where you want to strip whitespace or other formatting from the text.
* `innerText`:
	+ Pros: Suitable for scenarios where you need plain text without formatting.
	+ Cons: Does not account for Unicode characters, which may lead to unexpected results when dealing with non-ASCII text.
* `textContent.trim()`:
	+ Pros: Combines the benefits of both `textContent` and `innerText`, removing whitespace while preserving other formatting.
	+ Cons: Introduces an additional function call and potential performance overhead.

**Other Considerations**

When writing JavaScript benchmarks, it's essential to consider factors such as:

* Data types: Ensure that your test cases accurately represent real-world scenarios, taking into account data type conversions or transformations.
* Loop unrolling: Avoid unnecessary loops, which can introduce significant performance overhead. Instead, focus on the specific operations being tested.
* Memory allocation: Be mindful of memory allocations and deallocations during your tests, as they can impact performance.

**Library Usage**

In this benchmark definition, the `document` object is used to access DOM elements and create text nodes. The `appendChild()` method is also employed to add the text node to the element.

No external libraries are required for this example.

**Special JavaScript Features or Syntax**

The provided benchmark definition does not contain any special JavaScript features or syntax beyond standard ECMAScript. However, it's essential to note that certain browsers or environments may support additional features like `let` or `const` variables, which could impact performance in some cases.

Related benchmarks:

Test 123123123 (version: 0)

Comparing performance of: TextContent vs InnerText vs TextContent with trim

Created: 3 years ago by: Guest

Jump to the latest result

TextContent

InnerText

TextContent with trim

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):