January 25, 2026 - The integer and fraction digit properties indicate the number of digits to display before and after the decimal point, respectively. If the value to display has fewer integer digits than specified, it will be left-padded with zeros to the expected number. If it has fewer fractional digits, it will be right-padded with zeros. Both cases are shown below: ... // Formatting adds zeros to display minimum integers and fractions console.log( new Intl.NumberFormat("en", { minimumIntegerDigits: 3, minimumFractionDigits: 4, }).format(4.33), ); // "004.3300"

August 24, 2024 - That's because the minimum number of decimal digits we set in the options parameter as formatConfig, (minimumFractionDigits) was 2. See? Apart from the format method on the formatterObject, there is also another method, the formatToParts method ...

Getter function that formats a range of numbers according to the locale and formatting options of the Intl.NumberFormat object from which the method is called.

August 8, 2019 - const formatter = new Intl.NumberFormat('en'); formatter.format(987654.321); // → '987,654.321' formatter.formatToParts(987654.321); // → [ // → { type: 'integer', value: '987' }, // → { type: 'group', value: ',' }, // → { type: 'integer', value: '654' }, // → { type: 'decimal', value: '.' }, // → { type: 'fraction', value: '321' } // → ] Note: Although much of the Intl.NumberFormat functionality can be achieved using Number.prototype.toLocaleString, Intl.NumberFormat is often the better choice, since it enables creating a re-usable formatter instance which tends to be more efficient.

// Set up percentage style numeric ... of 1, it is rounded. console.log(formatter.format(12.3456)); // Logs: 1.235E5 // Decimal point will be a period, comma, or space depending on the locale....

2 weeks ago - The options object in new Intl.NumberFormat(locales, options) is where the magic happens. minimumFractionDigits and maximumFractionDigits control the number of decimal places.

Creates a NumberFormat for currencies, using the simple symbol for the currency if one is available (e.g. $, €), so it should only be used if the short currency symbol will be unambiguous. ... The name of the currency to print, in ISO 4217 form. ... The symbol to be used when formatting this as currency. ... The number of decimal places to use when formatting.

June 13, 2023 - Before we delve into the specifics of the Intl.NumberFormat API, let’s establish a basic understanding of what it offers. The API enables developers to format numbers based on the conventions of a specific locale. This includes formatting for things such as decimal separators, grouping ...

March 26, 2020 - It returns US style thousand separator comma and decimal point, while the Norwegian locale uses space and decimal comma. Intl.NumberFormat("en-US").format(123456.789); // returns "123,456.789" Intl.NumberFormat("nb-NO").format(123456.789); // returns "123 456,789"

var number = 3500; console.log(new Intl.NumberFormat().format(number)); // → '3,500' if in US English locale · This example shows some of the variations in localized number formats. In order to get the format of the language used in the user interface of your application, make sure to specify that language (and possibly some fallback languages) using the locales argument: var number = 123456.789; // German uses comma as decimal separator and period for thousands console.log(new Intl.NumberFormat('de-DE').format(number)); // → 123.456,789 // Arabic in most Arabic speaking countries uses real Arabic digits console.log(new Intl.NumberFormat('ar-EG').format(number)); // → ١٢٣٤٥٦٫٧٨٩ // India uses thousands/lakh/crore separators console.log(new Intl.NumberFormat('en-IN').format(number)); // → 1,23,456.789 // the nu extension key requests a numbering system, e.g.

let amount = 3500; new Intl.NumberFormat('en-US', {style: 'decimal'}).format(amount); // → '3,500' new Intl.NumberFormat('en-US', {style: 'percent'}).format(amount); // → '350,000%'

October 21, 2018 - NumberFormat doesn't actually allow you to format numbers in a way that I would say is "human friendly". Let's take her example. If we have a whole number like 12, we want to display that as a simple $12, but if we've got something like 12.3 ...

const formatter = new Intl.NumberFormat('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2, }); console.log(formatter.format(3.005)); // "3.01" console.log(formatter.format(2.345)); // "2.35" ...

You can adjust the number of decimal places shown with maximumFractionDigits to 0, and it just works. ... const usFormatterNoCents = new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD', maximumFractionDigits: 0, }); ...

November 5, 2021 - Chinese decimal console.log(new Intl.NumberFormat('zh-Hans-CN-u-nu-hanidec').format(number)); // → 一二三,四五六.七八九 // when requesting a language that may not be supported, such as // Balinese, include a fallback language, in this case Indonesian console.log(new Intl.NumberFormat(['ban', 'id']).format(number)); // → 123.456,789

Let fraction be the substring of n from position decimalSepIndex, exclusive, to the end of n. ... Let integer be n. ... Let groupSepSymbol be the implementation-, locale-, and numbering system-dependent (ILND) String representing the grouping separator. Let groups be a List whose elements are, in left to right order, the substrings defined by ILND set of locations within the integer, which may depend on the value of numberFormat.[[UseGrouping]].

April 3, 2024 - This is not ideal for several reasons. Our decimal value is hard coded as is our currency symbol. It is also hard to read and error-prone. In addition, the hard-coded decimal value is especially problematic. One of the many things NumberFormat can help us with is with currencies.

January 26, 2022 - This proposal adds measurement units, compact decimal notation, and other localized number formatting features to Intl.NumberFormat.

April 13, 2021 - new Intl.NumberFormat().format(12345) // 12,345 new Intl.NumberFormat('en-US', { maximumSignificantDigits: 4}).format(1.2345678) // 1.235 (Notice the rounding) new Intl.NumberFormat('en-GB', { style: 'currency', currency: 'GBP' }).format(9002.20) // £9,002.20 new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(9002.20) // 9.002,20 € new Intl.NumberFormat().formatToParts(12345.678) /* [ { "type":"integer", "value":"12" }, { "type":"group", "value":"," }, { "type":"integer", "value":"345" }, { "type":"decimal", "value":"." }, { "type":"fraction", "value":"678" } ] */ Don't bother writing your own client side number formatting functions if the numbers you want to present are standard formats -- leverage the amazing APIs the browser provides you!