Benchmark: TestJSIntl - MeasureThat.net

HTML Preparation code:

<!DOCTYPE html>
<html>
<body>

<h2>Use JavaScript to Change Text</h2>
<p>This example writes "Hello JavaScript!" into an HTML element with id="demo":</p>

<p id="demo1"></p>
<p id="demo2"></p>
<p id="demo3"></p>
<p id="demo4"></p>
<p id="demo5"></p>
<p id="demo6"></p>
<p id="demo7"></p>
<p id="demo8"></p>
<p id="demo9"></p>

</body>
</html>

Tests:

multipleNew
const number = 123456.789; document.getElementById("demo1").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number); document.getElementById("demo2").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number); document.getElementById("demo3").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number); document.getElementById("demo4").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number); document.getElementById("demo5").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number); document.getElementById("demo6").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number); document.getElementById("demo7").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number); document.getElementById("demo8").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number); document.getElementById("demo9").innerHTML = "Amount: " + new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }).format(number);
OneNew
const number = 123456.789; const format = new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' }); document.getElementById("demo1").innerHTML = "Amount: " + format.format(number); document.getElementById("demo2").innerHTML = "Amount: " + format.format(number); document.getElementById("demo3").innerHTML = "Amount: " + format.format(number); document.getElementById("demo4").innerHTML = "Amount: " + format.format(number); document.getElementById("demo5").innerHTML = "Amount: " + format.format(number); document.getElementById("demo6").innerHTML = "Amount: " + format.format(number); document.getElementById("demo7").innerHTML = "Amount: " + format.format(number); document.getElementById("demo8").innerHTML = "Amount: " + format.format(number); document.getElementById("demo9").innerHTML = "Amount: " + format.format(number);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
multipleNew
OneNew

Fastest: N/A

Slowest: N/A

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

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Let's dive into the world of JavaScript microbenchmarks.

**Benchmark Overview**

The provided benchmark, TestJSIntl, measures the performance of two approaches to format currency values using the Intl.NumberFormat API. The benchmark consists of eight HTML elements with unique IDs (demo1 to demo9), and each element is assigned a different formatted currency value.

**Approach 1: Multiple New Format Calls**

In this approach, the Intl.NumberFormat object is created only once, and then its format method is called multiple times for each element. The benchmark code:
```javascript
const number = 123456.789;
const format = new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' });
document.getElementById("demo1").innerHTML = "Amount: " + format.format(number);
// ... repeat for demo2 to demo9
```
**Pros and Cons**

Pros:

* The Intl.NumberFormat object is created only once, which reduces memory allocation and deallocation overhead.
* This approach is more efficient if the formatting logic remains the same.

Cons:

* Creating a new Intl.NumberFormat object each time can lead to slower performance due to increased memory allocations and garbage collection.
* If the formatting logic changes in the future, this approach would require updating the code for each element.

**Approach 2: Single New Format Call**

In this approach, the Intl.NumberFormat object is created once, and its format method is called for all elements. The benchmark code:
```javascript
const number = 123456.789;
const format = new Intl.NumberFormat('fr-CA', { style: 'currency', currency: 'CAD' });
document.getElementById("demo1").innerHTML = "Amount: " + format.format(number);
// ... repeat for demo2 to demo9
```
**Pros and Cons**

Pros:

* Creating a single Intl.NumberFormat object reduces memory allocations and garbage collection overhead.
* This approach is more concise and easier to maintain.

Cons:

* If the formatting logic changes, this approach would require updating the code only once, which can be beneficial for development speed.

**Library: Intl.NumberFormat**

The Intl.NumberFormat API is a part of the JavaScript standard library, introduced in ECMAScript 2015 (ES6). It provides a way to format numbers according to various cultural and linguistic conventions. The `Intl.NumberFormat` object takes three arguments:

1. Locale (e.g., 'fr-CA' for French Canada)
2. Options object (e.g., `{ style: 'currency', currency: 'CAD' }`)

The Intl.NumberFormat API is used to format numbers, dates, and other numeric values according to the specified locale and options.

**Special JS Feature/ Syntax**

None of the benchmark approaches use any special JavaScript features or syntax. However, it's worth noting that the Intl.NumberFormat API uses Unicode characters and may not work correctly in older browsers.

**Other Alternatives**

If you're looking for alternative approaches, consider:

* Using a library like moment.js to format dates and numbers
* Implementing custom formatting logic using string manipulation and concatenation
* Leveraging browser-specific APIs or extensions (e.g., Web Components) for more efficient rendering

Keep in mind that the choice of approach depends on your specific use case, performance requirements, and development constraints.

Related benchmarks:

TestJSIntl (version: 0)

Comparing performance of: multipleNew vs OneNew

Created: 3 years ago by: Guest

Jump to the latest result

multipleNew

OneNew

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):