Benchmark: string comparation

HTML Preparation code:

<div id="container"></div>

Script Preparation code:

var container = document.getElementById("container");

var string1 = "lorem ipsum dolor sit amet bla bla some more text let's go we in it to win it";
var string2 = "lorem ipsum dolor sit amet bla bla some more text let's go we in it to win it you've changed man why though?"

container.textContent = "lorem ipsum dolor sit amet bla bla some more text let's go we in it to win it";

Tests:

simple
if (string1 !== string2) { container.textContent = string2; }
locale
if (string1.localeCompare(string2)) { container.textContent = string2; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
simple
locale

Fastest: N/A

Slowest: N/A

Latest run results:

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

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

**Benchmark Overview**

The benchmark is designed to compare two approaches for comparing strings in JavaScript: a simple `!==` check versus the `localeCompare()` method with locale settings.

**Script Preparation Code**

The script preparation code sets up the test environment:

* It creates a container element in the HTML using `document.getElementById("container")`.
* It defines two string variables, `string1` and `string2`, which are almost identical except for the last word.
* It updates the text content of the container element to display one of the strings (the exact order depends on the test case).

**Html Preparation Code**

The HTML preparation code simply includes a `<div>` element with an ID of "container", which will be used as the target for the benchmark.

**Benchmark Definitions**

There are two individual test cases:

1. **Simple**: This test case uses a simple `!==` check to compare `string1` and `string2`. The expected behavior is that if the strings are not identical, the text content of the container element will be updated to display `string2`.
2. **Locale**: This test case uses the `localeCompare()` method with locale settings to compare `string1` and `string2`. The expected behavior is that if the strings are not identical, the text content of the container element will be updated to display `string2`.

**Pros and Cons**

Here are some pros and cons for each approach:

* **Simple `!==` check**:
	+ Pros: Simple to implement, widely supported.
	+ Cons: Can return incorrect results if the strings contain non-ASCII characters or accents, as it relies on a simple character-by-character comparison.
* **localeCompare() method with locale settings**:
	+ Pros: More accurate and robust, handles non-ASCII characters and accents correctly, provides locale-specific sorting rules.
	+ Cons: Can be slower than the simple `!==` check due to the additional overhead of comparing locales.

**Library/Features**

There is no specific library being used in this benchmark. However, it's worth noting that JavaScript engines (e.g., V8, SpiderMonkey) may implement their own locale comparison algorithms and heuristics under the hood.

No special JavaScript features or syntax are being tested in this benchmark.

**Other Alternatives**

Some alternative approaches for comparing strings in JavaScript include:

* Using regular expressions to match the entire string
* Comparing the Unicode code points of individual characters in the strings
* Using a library like ICU (International Components for Unicode) for more advanced locale-aware comparisons

Keep in mind that these alternatives may have their own trade-offs and complexities, depending on the specific requirements and constraints of the use case.

Related benchmarks:

string comparation (version: 0)

Comparing performance of: simple vs locale

Created: 9 years ago by: Registered User

Jump to the latest result

simple

locale

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):