将金额千分位转化成数字 插件

 var fmt = {
    /**
     * 将金额千分位转化成数字
     * eg:num = 1,000 --- 1000
     */
    delectCommafy: function (num) {
        return num.replace(/,/g, '') * 1;
    },
    formatCurrency: function (value) {
        return "￥ " + fmt.formatNumber(value, 0);
    },
    formatCoin: function (value,precision = 0) {
        return fmt.formatNumber(value, precision);
    },
    abs: function (value) {
        return Math.abs(value);
    },
    percent: function (a, b) {
        var str = parseInt(a / b * 100);
        str += "%";
        return str
    },
    int: function (value) {
        return parseInt(value);
    },
    formatNumber: function (value, precision = 2) {
        value = Math.abs(value);
        //整数部分
        var intv = Math.floor(value);
        var arr = [];
        if (intv < 0.01) {
            arr.push("0");
        } else {
            while (intv > 0) {
                if (intv >= 1000) {
                    arr.push(fmt.intToString(intv % 1000, 3));
                } else {
                    arr.push(intv);
                }
                intv = Math.floor(intv / 1000);
            }
        }
        arr.reverse();
        var part1 = arr.join(',');
        if (precision == 0) {
            return part1;
        }
        var value2 = value;
        var part2 = "";
        for (var i = 0; i < precision; i++) {
            part2 = part2 + Math.floor(value2 * 10 % 10);
            value2 = value2 * 10;
        }
        return part1 + "." + part2;
    },
    intToString: function (value, length) {
        var result = "";
        while (value > 0) {
            result = (value % 10) + result;
            value = Math.floor(value / 10);
        }
        var rest = length - result.length;
        for (var i = 0; i < rest; i++) {
            result = "0" + result;
        }
        return result;
    }
};
export default fmt;