JS 添加千分位与去掉千分位的示例_javascript技巧

function commafyback(num)

{

var x = num.split(',');

return parseFloat(x.join(""));

}

function commafy(num)

{

num = num.toFixed(2) +"";

var re=/(-?/d+)(/d{3})/

while(re.test(num)){

num=num.replace(re,"$1,$2");

}

return num;

}