分类：JavaScript数值运算技巧

2020
10-08

JavaScript前端开发时数值运算的小技巧

1.格式化金钱值constThousandNum=num=>num.toString().replace(/\B(?=(\d{3})+(?!\d))/g,",");constmoney=ThousandNum(20190214);//money=>"20,190,214"2.取整代替正数的Math.floor()，代替负数的Math.ceil()constnum1=~~1.69;constnum2=1.69|0;constnum3=1.69>>0;//num1num2num3=>1113.转数值只对null、""、false、数值字符串有效constnum1=+null;constnum2=+"";constnum3=+fa... 继续阅读 >