Intl.Locale.prototype.maximize()

¥Syntax

maximize()

¥Parameters

没有任何。

¥None.

¥Return value

一个 Intl.Locale 实例，其 baseName 属性返回针对 locale.baseName 执行的 添加可能的子标签 算法的结果。

¥A Intl.Locale instance whose baseName property returns the result of the Add Likely Subtags algorithm executed against locale.baseName.

¥Description

有时，能够根据不完整的语言 ID 识别最可能的区域设置语言标识符子标签会很方便。添加可能的子标签算法为我们提供了此功能。例如，给定语言 ID "en"，算法将返回 "美国拉丁语"，因为英语只能用拉丁字母书写，并且最有可能在美国使用，因为美国是世界上最大的英语国家 。此功能通过 maximize() 方法提供给 JavaScript 程序员。maximize() 仅影响构成 语言标识符 的主要子标签：语言、脚本和区域子标签。区域设置标识符中 "-u" 之后的其他子标签称为扩展子标签，不受 maximize() 方法的影响。这些子标签的示例包括 hourCycle、calendar 和 numeric。

¥Sometimes, it is convenient to be able to identify the most likely locale language identifier subtags based on an incomplete language ID. The Add Likely Subtags algorithm gives us this functionality. For instance, given the language ID "en", the algorithm would return "en-Latn-US", since English can only be written in the Latin script, and is most likely to be used in the United States, as it is the largest English-speaking country in the world. This functionality is provided to JavaScript programmers via the maximize() method. maximize() only affects the main subtags that comprise the language identifier: language, script, and region subtags. Other subtags after the "-u" in the locale identifier are called extension subtags and are not affected by the maximize() method. Examples of these subtags include hourCycle, calendar, and numeric.

¥Examples

¥Using maximize

const myLocale = new Intl.Locale("fr", {
  hourCycle: "h12",
  calendar: "gregory",
});
console.log(myLocale.baseName); // Prints "fr"
console.log(myLocale.toString()); // Prints "fr-u-ca-gregory-hc-h12"
const myLocMaximized = myLocale.maximize();

// Prints "fr-Latn-FR". The "Latn" and "FR" tags are added,
// since French is only written in the Latin script and is most likely to be spoken in France.
console.log(myLocMaximized.baseName);

// Prints "fr-Latn-FR-u-ca-gregory-hc-h12".
// Note that the extension tags (after "-u") remain unchanged.
console.log(myLocMaximized.toString());

¥See also

• Intl.Locale
• baseName
• Unicode 区域设置数据标记语言规范中的 可能的子标签