vue常用全局filter

1. 保留小数位数

    Vue.filter("toFixed", function (val, acc) {  //保留小数位，acc为保留几位小数位
        let num = parseFloat(val);
        if (isNaN(num)) {
            num = 0;
        }
        let accuracy = parseInt(acc);
        if (isNaN(accuracy) || accuracy < 0 || accuracy > 10) {
            accuracy = 2;
        }
        return num.toFixed(accuracy);
    });
    
    Vue.filter("toFixed", fu