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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | 1x 3x 3x 1x 3x 1x | /**
* 数字的千分位逗号分隔表示法
* - IE8 的 toLocalString 给出了小数点后2位: N.00
* @method commaFormat
* @see http://stackoverflow.com/questions/2901102/how-to-print-a-number-with-commas-as-thousands-separators-in-javascript
* @param {Number} num 数字
* @returns {String} 千分位表示的数字
* @example
* import { commaFormat } from '@spore-ui/tskit'
* commaFormat(1234567); // '1,234,567'
*/
export function commaFormat(num: number): string {
const parts = num.toString().split('.');
if (parts[0]) {
parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',');
}
if (parts[1]) {
parts[1] = parts[1].replace(/(?:\d{3})/g, '$&,');
}
return parts.join('.');
}
export default commaFormat;
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