var str = "2315678901";
str = str.replace(/\B(?=(\d{3})+$)/g,",");
console.log(str);//2,315,678,901
正则匹配小技巧
最新推荐文章于 2022-06-14 17:02:02 发布
var str = "2315678901";
str = str.replace(/\B(?=(\d{3})+$)/g,",");
console.log(str);//2,315,678,901