From 074785cea106179cb3305637055ab0a009ca74f2 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:42:52 -0500 Subject: initial commit --- .../global_objects/intl/datetimeformat/index.html | 188 +++++++++++++++++++++ 1 file changed, 188 insertions(+) create mode 100644 files/pt-br/web/javascript/reference/global_objects/intl/datetimeformat/index.html (limited to 'files/pt-br/web/javascript/reference/global_objects/intl/datetimeformat') diff --git a/files/pt-br/web/javascript/reference/global_objects/intl/datetimeformat/index.html b/files/pt-br/web/javascript/reference/global_objects/intl/datetimeformat/index.html new file mode 100644 index 0000000000..6c060cd838 --- /dev/null +++ b/files/pt-br/web/javascript/reference/global_objects/intl/datetimeformat/index.html @@ -0,0 +1,188 @@ +--- +title: Intl.DateTimeFormat +slug: Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat +translation_of: Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat +--- +
{{JSRef}}
+ +

O objeto Intl.DateTimeFormat é um constructor para objetos que habilita o formato de data e hora no idioma padrão.

+ +
{{EmbedInteractiveExample("pages/js/intl-datetimeformat.html")}}
+ + + +

Constructor

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+
Intl.DateTimeFormat()
+
Creates a new DateTimeFormat object.
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+ +

Static methods

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+
{{jsxref("DateTimeFormat.supportedLocalesOf", "Intl.DateTimeFormat.supportedLocalesOf()")}}
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Returns an array containing those of the provided locales that are supported without having to fall back to the runtime's default locale.
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+ +

Instance methods

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+
{{jsxref("DateTimeFormat.format", "Intl.DateTimeFormat.prototype.format()")}}
+
Getter function that formats a date according to the locale and formatting options of this {{jsxref("DateTimeFormat", "DateTimeFormat")}} object.
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{{jsxref("DateTimeFormat.formatToParts", "Intl.DateTimeFormat.prototype.formatToParts()")}}
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Returns an {{jsxref("Array")}} of objects representing the date string in parts that can be used for custom locale-aware formatting.
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{{jsxref("DateTimeFormat.resolvedOptions", "Intl.DateTimeFormat.prototype.resolvedOptions()")}}
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Returns a new object with properties reflecting the locale and formatting options computed during initialization of the object.
+
{{jsxref("DateTimeFormat.formatRange", "Intl.DateTimeFormat.prototype.formatRange()")}}
+
This method receives two Dates and formats the date range in the most concise way based on the locale and options provided when instantiating {{jsxref("DateTimeFormat", "DateTimeFormat")}}.
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{{jsxref("DateTimeFormat.formatRangeToParts", "Intl.DateTimeFormat.prototype.formatRangeToParts()")}}
+
This method receives two Dates and returns an Array of objects containing the locale-specific tokens representing each part of the formatted date range.
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+ +

Examples

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Using DateTimeFormat

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In basic use without specifying a locale, DateTimeFormat uses the default locale and default options.

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var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
+// toLocaleString without arguments depends on the implementation,
+// the default locale, and the default time zone
+console.log(new Intl.DateTimeFormat().format(date));
+// → "12/19/2012" if run with en-US locale (language) and time zone America/Los_Angeles (UTC-0800)
+
+ +

Using locales

+ +

This example shows some of the variations in localized date and time 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:

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var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
+// Results below use the time zone of America/Los_Angeles (UTC-0800, Pacific Standard Time)
+
+// US English uses month-day-year order
+console.log(new Intl.DateTimeFormat('en-US').format(date));
+// → "12/19/2012"
+
+// British English uses day-month-year order
+console.log(new Intl.DateTimeFormat('en-GB').format(date));
+// → "19/12/2012"
+
+// Korean uses year-month-day order
+console.log(new Intl.DateTimeFormat('ko-KR').format(date));
+// → "2012. 12. 19."
+
+// Arabic in most Arabic speaking countries uses real Arabic digits
+console.log(new Intl.DateTimeFormat('ar-EG').format(date));
+// → "١٩‏/١٢‏/٢٠١٢"
+
+// for Japanese, applications may want to use the Japanese calendar,
+// where 2012 was the year 24 of the Heisei era
+console.log(new Intl.DateTimeFormat('ja-JP-u-ca-japanese').format(date));
+// → "24/12/19"
+
+// when requesting a language that may not be supported, such as
+// Balinese, include a fallback language, in this case Indonesian
+console.log(new Intl.DateTimeFormat(['ban', 'id']).format(date));
+// → "19/12/2012"
+
+ +

Using options

+ +

The date and time formats can be customized using the options argument:

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var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0, 200));
+
+// request a weekday along with a long date
+var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
+console.log(new Intl.DateTimeFormat('de-DE', options).format(date));
+// → "Donnerstag, 20. Dezember 2012"
+
+// an application may want to use UTC and make that visible
+options.timeZone = 'UTC';
+options.timeZoneName = 'short';
+console.log(new Intl.DateTimeFormat('en-US', options).format(date));
+// → "Thursday, December 20, 2012, GMT"
+
+// sometimes you want to be more precise
+options = {
+  hour: 'numeric', minute: 'numeric', second: 'numeric',
+  timeZone: 'Australia/Sydney',
+  timeZoneName: 'short'
+};
+console.log(new Intl.DateTimeFormat('en-AU', options).format(date));
+// → "2:00:00 pm AEDT"
+
+// sometimes you want to be very precise
+options.fractionalSecondDigits = 3;
+console.log(new Intl.DateTimeFormat('en-AU', options).format(date));
+// → "2:00:00.200 pm AEDT"
+
+
+// sometimes even the US needs 24-hour time
+options = {
+  year: 'numeric', month: 'numeric', day: 'numeric',
+  hour: 'numeric', minute: 'numeric', second: 'numeric',
+  hour12: false,
+  timeZone: 'America/Los_Angeles'
+};
+console.log(new Intl.DateTimeFormat('en-US', options).format(date));
+// → "12/19/2012, 19:00:00"
+
+
+// to specify options but use the browser's default locale, use 'default'
+console.log(new Intl.DateTimeFormat('default', options).format(date));
+// → "12/19/2012, 19:00:00"
+
+// sometimes it's helpful to include the period of the day
+options = {hour: "numeric", dayPeriod: "short"};
+console.log(new Intl.DateTimeFormat('en-US', options).format(date));
+// → 10 at night
+
+ +

The used calendar and numbering formats can also be set independently via options arguments:

+ +
var options = {calendar: 'chinese', numberingSystem: 'arab'};
+var dateFormat = new Intl.DateTimeFormat('default', options);
+var usedOptions = dateFormat.resolvedOptions();
+
+console.log(usedOptions.calendar);
+// → "chinese"
+
+console.log(usedOptions.numberingSystem);
+// → "arab"
+
+console.log(usedOptions.timeZone);
+// → "America/New_York" (the users default timezone)
+
+ +

Specifications

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Specification
{{SpecName('ES Int Draft', '#datetimeformat-objects', 'Intl.DateTimeFormat')}}
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Browser compatibility

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+ + +

{{Compat("javascript.builtins.Intl.DateTimeFormat")}}

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See also

+ + -- cgit v1.2.3-54-g00ecf