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JavaScript String toLocaleUpperCase() 方法


实例

将字符串转换为大写字母:

var str = "Hello World!";
var res = str.toLocaleUpperCase();
亲自试一试 »

定义和用法

toLocaleUpperCase() 方法根据主机的当前区域设置将字符串转换为大写字母。

区域设置基于浏览器的语言设置。

通常,此方法返回的结果与 toUpperCase() 方法相同。但是,对于某些语言环境,如果语言与常规的 Unicode 大小写映射发生冲突,结果可能会有所不同。

注释: toLocaleUpperCase() 方法不会更改原始字符串。

提示: 根据主机的当前区域设置,使用 toLocaleLowerCase() 方法将字符串转换为小写字母。


浏览器支持

方法
toLocaleUpperCase() Yes Yes Yes Yes Yes

语法

string.toLocaleUpperCase()

参数

None.

技术细节

返回值: 字符串,表示根据主机的当前区域设置转换为大写的字符串的值
JavaScript 版本: ECMAScript 1

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