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• 句法
• 描述
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

Intl.DateTimeFormat.prototype.resolvedOptions() method returns a new object with properties reflecting the locale and date and time formatting options computed during initialization of this DateTimeFormat 对象。

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

句法

dateTimeFormat.resolvedOptions()
					

返回值

A new object with properties reflecting the locale and date and time formatting options computed during the initialization of the given DateTimeFormat 对象。

描述

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 .

calendar

E.g. "gregory"

numberingSystem

The values requested using the Unicode extension keys "ca" and "nu" or filled in as default values.

timeZone

The value provided for this property in the options argument; undefined (representing the runtime's default time zone) if none was provided. Warning: Applications should not rely on undefined being returned, as future versions may return a String value identifying the runtime’s default time zone instead.

hour12

The value provided for this property in the options argument or filled in as a default.

weekday

era

year

month

day

hour

minute

second

timeZoneName

The values resulting from format matching between the corresponding properties in the options argument and the available combinations and representations for date-time formatting in the selected locale. Some of these properties may not be present, indicating that the corresponding components will not be represented in formatted output.

范例

使用 resolvedOptions 方法

var germanFakeRegion = new Intl.DateTimeFormat('de-XX', { timeZone: 'UTC' });
var usedOptions = germanFakeRegion.resolvedOptions();
usedOptions.locale;          // "de"
usedOptions.calendar;        // "gregory"
usedOptions.numberingSystem; // "latn"
usedOptions.timeZone;        // "UTC"
usedOptions.month;           // "numeric"
					

规范

规范
ECMAScript 国际化 API (ECMA-402) The definition of 'Intl.DateTimeFormat.prototype.resolvedOptions' in that specification.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
resolvedOptions	Chrome 24	Edge 12	Firefox 29	IE 11	Opera 15	Safari 10	WebView Android 4.4	Chrome Android 25	Firefox Android 56	Opera Android 14	Safari iOS 10	Samsung Internet Android 1.5	nodejs 0.12 0.12 Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() 构造函数 了解更多细节。
computed timeZone	Chrome 35	Edge 14	Firefox 53	IE No	Opera 30	Safari 10	WebView Android ≤37	Chrome Android 35	Firefox Android 56	Opera Android 22	Safari iOS 10	Samsung Internet Android 3.0	nodejs 8.10.0

图例

完整支持

完整支持

不支持

不支持

见实现注意事项。

另请参阅

• Intl.DateTimeFormat

元数据

• 最后修改： Apr 21, 2020

相关话题

1. 标准内置对象
2. Intl
3. 方法
   1. Intl.getCanonicalLocales()
4. 相关页面：
5. Collator
6. DateTimeFormat
7. ListFormat
8. NumberFormat
9. PluralRules
10. RelativeTimeFormat
11. 继承：
12. Object
13. 特性
    1. Object.prototype.__proto__
    2. Object.prototype.constructor
14. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.valueOf()
    12. Object.setPrototypeOf()