vue全局数字千分位格式化过滤器123456----123,456.00

// 格式化数字-全局过滤器
Vue.filter('formatCurrency', function(num) {
    if (!num) { return 0 }
    num = num.toString().replace(/\$|\,/g, '');
    if (isNaN(num))
        num = "0";
    let sign = (num == (num = Math.abs(num)));
    num = Math.floor(num * 100 + 0.50000000001);
    let cents = num % 100;
    num = Math.floor(num / 100).toString();
    if (cents < 10)
        cents = "0" + cents;
    for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++)
        num = num.substring(0, num.length - (4 * i + 3)) + ',' +
        num.substring(num.length - (4 * i + 3));
    return (((sign) ? '' : '-') + num + '.' + cents);
})

//{{123456 | formatCurrency}}   ---  123,456.00