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Number.toLocaleString vs Intl.NumberFormat (single instance)
(version: 0)
Comparing performance of:
Intl.NumberFormat vs Number.toLocaleString
Created:
2 years ago
by:
Guest
Go to the latest result
Script Preparation code:
window.formatter = new Intl.NumberFormat(undefined, { style: 'currency', currency: 'RUB', })
Tests:
Intl.NumberFormat
const currencyPlayNumber = 1; const translatedString = formatter.format(currencyPlayNumber);
Number.toLocaleString
const currencyPlayNumber = 1; const translatedString = currencyPlayNumber.toLocaleString(undefined, { style: 'currency', currency: 'RUB', })
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Intl.NumberFormat
Number.toLocaleString
Fastest:
N/A
Slowest:
N/A
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/123.0.0.0 Safari/537.36
Browser/OS:
Chrome 123 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=518372" width="100%" height="500px"></iframe>
Intl.NumberFormat
3.3M/s
Number.toLocaleString
67K/s
View exact numbers
Test name
Executions per second
✓
Intl.NumberFormat
3,294,658 Ops/sec
Number.toLocaleString
66,975 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what is being tested. **Benchmark Definition** The benchmark defines two test cases: 1. **Intl.NumberFormat**: This test case uses the `Intl.NumberFormat` API to format a number as a currency string. The options specified are: * `style`: set to `'currency'`, which indicates that the output should be formatted as a currency string. * `currency`: set to `'RUB'`, which specifies the currency code for the Russian Ruble. 2. **Number.toLocaleString**: This test case uses the `toLocaleString` method on the global `Number` object to format a number as a currency string. The options specified are: * `style`: set to `'currency'`, which indicates that the output should be formatted as a currency string. * `currency`: set to `'RUB'`, which specifies the currency code for the Russian Ruble. **Library: Intl.NumberFormat** The `Intl.NumberFormat` library is part of the Internationalization API in JavaScript. It provides a way to format numbers according to the language and region of the user's device. In this benchmark, it is used to format currency strings with the specified options (style and currency). **Pros and Cons of Intl.NumberFormat** Pros: * Provides precise control over formatting options * Can be used to format numbers in multiple languages and regions * Returns a string that can be easily parsed by other libraries or applications Cons: * May require more JavaScript code compared to `toLocaleString` * Some users may not have the required features enabled (e.g., Intl API) in their browser **Pros and Cons of Number.toLocaleString** Pros: * Much simpler syntax than `Intl.NumberFormat` * Faster execution time, as it is a built-in method on the global `Number` object * Works well for simple formatting needs Cons: * Less control over formatting options compared to `Intl.NumberFormat` * May not work in all languages or regions (e.g., some cultures may require additional formatting characters) * Returns a string that is less flexible than an Intl API response **Other Considerations** * **Browser support**: Both `Intl.NumberFormat` and `Number.toLocaleString` are supported by modern browsers, but the exact implementation may vary between them. * **Language and region**: The `currency` option specifies the currency code for the Russian Ruble. If you need to format numbers in other currencies or languages, you'll need to adjust this option accordingly. **Alternative Approaches** If you're looking for alternatives to these two methods, consider using: 1. **NumberFormat**: A third-party library that provides a more flexible and customizable way to format numbers. 2. **moment.js**: A popular JavaScript date and time library that also includes formatting capabilities for currency strings. 3. **custom implementation**: If you need fine-grained control over the formatting process, you can implement your own custom solution using JavaScript templates or regular expressions. Keep in mind that each alternative has its pros and cons, and may require additional code or dependencies compared to `Intl.NumberFormat` and `Number.toLocaleString`.
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