Possible values are "full", "long", "medium", and "short". The date formatting style to use when calling format(). This option is only used when both dateStyle and timeStyle are undefined (so that each date-time component's format is individually customizable). The algorithm for "best fit" is implementation-defined, and "basic" is defined by the spec. Implementations may support other subsets, and requests will be negotiated against all available subset-representation combinations to find the best match. weekday, year, month, day, hour, minute, second.Implementations are required to support displaying at least the following subsets of date-time components: Possible values are "basic" and "best fit" the default is "best fit". If any of the date-time component options is specified, then dateStyle and timeStyle must be undefined. The default value for each date-time component option is undefined, but if all component properties are undefined, then year, month, and day default to "numeric". For example, the non-location formats should display the timezone without a specific country/city location like "Pacific Time", but may fall back to a timezone like "Los Angeles Time". Note: Timezone display may fall back to another format if a required string is unavailable. Long generic non-location format (e.g.: Pacific Time, Nordamerikanische Westküstenzeit) Short generic non-location format (e.g.: PT, Los Angeles Zeit). Long localized GMT format (e.g., GMT-08:00) "shortGeneric" Short localized GMT format (e.g., GMT-8) "longOffset" Short localized form (e.g.: PST, GMT-8) "shortOffset" Long localized form (e.g., Pacific Standard Time, Nordamerikanische Westküsten-Normalzeit) "short" The localized representation of the time zone name. The number of digits used to represent fractions of a second (any additional digits are truncated). Possible values are "numeric" and "2-digit". Many locales use the same string irrespective of the width specified. Note: This option only has an effect if a 12-hour clock ( hourCycle: "h12" or hourCycle: "h11") is used. The formatting style used for day periods like "in the morning", "am", "noon", "n" etc. Two months may have the same narrow style for some locales (e.g. Two weekdays may have the same narrow style for some locales (e.g. Implementations may also recognize the time zone names of the IANA time zone database, such as "Asia/Shanghai", "Asia/Kolkata", "America/New_York". The only value implementations must recognize is "UTC" the default is the runtime's default time zone. This option can also be set through the hc Unicode extension key if both are provided, this options property takes precedence. It sets hourCycle to "h11" or "h12" when true, and "h23" or "h24" when false, the exact choice depending on the locale - for example, if the locale most prefers "h23" but hour12 is true, then the final hour cycle is "h11". This option overrides the hc locale extension tag and/or the hourCycle option in case both are present. Possible values are true and false the default is locale dependent. Whether to use 12-hour time (as opposed to 24-hour time). This option can also be set through the nu Unicode extension key if both are provided, this options property takes precedence. For a list of supported numbering system types, see (). The numbering system to use for number formatting, such as "arab", "hans", "mathsans", and so on. This option can also be set through the ca Unicode extension key if both are provided, this options property takes precedence. For a list of supported calendar types, see (). The calendar to use, such as "chinese", "gregory", "persian", and so on. For information about this option, see Locale identification and negotiation. Possible values are "lookup" and "best fit" the default is "best fit". For ease of reading, the property list is broken into sections based on their purposes, including locale options, date-time component options, and style shortcuts. When both are set, the options property takes precedence. These keys can also be set with options (as listed below). ![]() The following Unicode extension key is allowed: nu For the general form and interpretation of the locales argument, see the parameter description on the Intl main page. The runtime's default locale is used when undefined is passed or when none of the specified locale identifiers is supported. ()Ī string with a BCP 47 language tag or an Intl.Locale instance, or an array of such locale identifiers.Object.prototype._lookupGetter_() Deprecated. ![]()
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