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Intl.numberFormat.resolvedOptions

The Intl.NumberFormat.prototype.resolvedOptions() method returns a new object with properties reflecting the locale and number formatting options computed during initialization of this NumberFormat object.

Syntax

numberFormat.resolvedOptions()

Return value

A new object with properties reflecting the locale and number formatting options computed during the initialization of the given NumberFormat object.

Description

The resulting object has the following properties:

locale
The BCP 47 language tag for the locale actually used. If any Unicode extension values were requested in the input BCP 47 language tag that led to this locale, the key-value pairs that were requested and are supported for this locale are included in locale.
numberingSystem
The value provided for this properties in the options argument, if present, or the value requested using the Unicode extension key "nu" or filled in as a default.
notation
The value provided for this property in the options argument, if present, or "standard filled in as a default.
compactDisplay
The value provided for this property in the options argument, or "short" filled in as a default.
This property is only present if the notation is set to "compact".
signDisplay
The value provided for this property in the options argument, or "auto" filled in as a default.
useGrouping
The values provided for these properties in the options argument or filled in as defaults.
currency
currencyDisplay
The values provided for these properties in the options argument or filled in as defaults. These properties are only present if style is "currency".

Only one of the following two groups of properties is included:

minimumIntegerDigits
minimumFractionDigits
maximumFractionDigits
The values provided for these properties in the options argument or filled in as defaults. These properties are present only if neither minimumSignificantDigits nor maximumSignificantDigits was provided in the options argument.
minimumSignificantDigits
maximumSignificantDigits
The values provided for these properties in the options argument or filled in as defaults. These properties are present only if at least one of them was provided in the options argument.

Examples

Using the resolvedOptions method

var de = new Intl.NumberFormat('de-DE');
var usedOptions = de.resolvedOptions();

usedOptions.locale;                // "de-DE"
usedOptions.numberingSystem;       // "latn"
usedOptions.notation;              // "standard"
usedOptions.signDisplay;           // "auto"
usedOption.style;                  // "decimal"
usedOptions.minimumIntegerDigits;  // 1
usedOptions.minimumFractionDigits; // 0
usedOptions.maximumFractionDigits; // 3
usedOptions.useGrouping;           // true

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
resolvedOptions 24 12 29 11 15 10
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
resolvedOptions 4.4 25 56 14 10 1.5
Server
Node.js
resolvedOptions 0.12
0.12
Before version 13.0.0, only the locale data for en-US is available by default. See the NumberFormat() constructor for more details.

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/resolvedOptions