Intl.NumberFormat.prototype.format
属性返回一个根据NumberFormat
对象的语言环境和格式化选项,来格式化一个数字的getter函数。
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语法
numberFormat.format(number)
参数
-
number
- 要格式化的数值。
描述
该函数返回一个根据NumberFormat
对象的语言环境和格式化选项,来format
一个数字的函数。
示例
使用 format
使用 format
格式化一个单一的货币值, 以俄罗斯为例:
var options = { style: 'currency', currency: 'RUB' }; var numberFormat = new Intl.NumberFormat('ru-RU', options); console.log(numberFormat.format(654321.987)); // → "654 321,99 руб."
使用 format
和 map
使用 format
返回的函数来格式化数组中的所有数字。注意,该函数绑定到所获得的Array.prototype.map
。
var a = [123456.789, 987654.321, 456789.123]; var numberFormat = new Intl.NumberFormat('es-ES'); var formatted = a.map(numberFormat.format); console.log(formatted.join('; ')); // → "123.456,789; 987.654,321; 456.789,123"
规范
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-dataand send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
format |
Chrome Full support 24 | Edge Full support 12 | Firefox Full support 29 | IE Full support 11 | Opera Full support 15 | Safari Full support 10 | WebView Android Full support Yes | Chrome Android Full support 26 | Firefox Android Full support 56 | Opera Android ? | Safari iOS Full support 10 | Samsung Internet Android Full support 1.5 | nodejs ? |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown