Benchmark: Number.toLocaleString vs Intl.NumberFormat (multiple values)

Tests:

Intl.NumberFormat
const value1 = 1; const value2 = 2; const value3 = 3; const value4 = 4; const value5 = 5; const value6 = 6; const value7 = 7; const value8 = 8; const value9 = 9; const value10 = 10; const formatter = new Intl.NumberFormat(undefined, { style: 'currency', currency: 'RUB', }) formatter.format(value1); formatter.format(value2); formatter.format(value3); formatter.format(value4); formatter.format(value5); formatter.format(value6); formatter.format(value7); formatter.format(value8); formatter.format(value9); formatter.format(value10);
Number.toLocaleString
const value1 = 1; const value2 = 2; const value3 = 3; const value4 = 4; const value5 = 5; const value6 = 6; const value7 = 7; const value8 = 8; const value9 = 9; const value10 = 10; value1.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value2.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value3.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value4.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value5.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value6.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value7.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value8.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value9.toLocaleString(undefined, { style: 'currency', currency: 'RUB', }) value10.toLocaleString(undefined, { style: 'currency', currency: 'RUB', })

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Intl.NumberFormat
Number.toLocaleString

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 benchmark definition and test cases.

**Benchmark Definition**

The benchmark measures the performance of two JavaScript methods: `Intl.NumberFormat` and `Number.toLocaleString`, both used to format numbers as currency. The specific use case is formatting Russian Rubles (RUB) with a style of "currency".

**Options being compared**

Two options are being compared:

1. **`Intl.NumberFormat`**: This method uses the Internationalization API to format numbers according to the specified locale and options. In this case, it's used to format RUB currency.
2. **`Number.toLocaleString`**: This method formats a number as a string, using the `toLocaleString` method on the `Number` object. It can also be used with options to specify formatting.

**Pros and Cons**

Here are some pros and cons of each approach:

* **`Intl.NumberFormat`**:
	+ Pros:
		- More flexible and configurable than `Number.toLocaleString`.
		- Can handle more complex number formats, such as thousand separators and decimal places.
		- Takes advantage of locale-specific formatting rules.
	+ Cons:
		- May be slower due to the overhead of internationalization.
		- Requires a specific locale and options configuration.
* **`Number.toLocaleString`**:
	+ Pros:
		- Faster execution, as it's a simpler method.
		- Easier to use, with fewer configuration options required.
	+ Cons:
		- Less flexible and configurable than `Intl.NumberFormat`.
		- May not produce the same level of locale-specific formatting accuracy.

**Library/Functionality**

* **`Intl.NumberFormat`**: This is a part of the Internationalization API in JavaScript, which provides support for formatting numbers according to specific locales. It's used by browsers and Node.js to handle date and number formatting.
* **`Number.toLocaleString`**: This method is a built-in part of the `Number` object in JavaScript, used to format numbers as strings.

**Special JS features or syntax**

There are no special JavaScript features or syntax being tested in this benchmark. The focus is on comparing two specific methods for formatting currency values.

**Alternatives**

If you need to format numbers as currency, here are some alternative approaches:

* Use a dedicated library like Moment.js or Luxon, which provide more advanced date and number formatting capabilities.
* Implement your own custom formatting logic using regular expressions or template literals.
* Use a different programming language or framework that provides built-in support for internationalization and formatting.

Keep in mind that the choice of approach depends on the specific requirements of your project and the trade-offs between performance, flexibility, and ease of use.

Related benchmarks:

Number.toLocaleString vs Intl.NumberFormat (multiple values) (version: 0)

Comparing performance of: Intl.NumberFormat vs Number.toLocaleString

Created: 3 years ago by: Registered User

Jump to the latest result

Intl.NumberFormat

Number.toLocaleString

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):