格式金额，默认保留两位小数，并格式化为千分位

商城类项目中大多需要格式化金额&＃xff0c;后缀保留两位小数&＃xff0c;并且千元之后加上千分位符号
例子&＃xff1a;32,131.00 这种金额&＃xff0c;贴上js代码&＃xff0c;可以新建一个js引用就行

//格式金额&＃xff0c;默认保留两位小数&＃xff0c;并格式化为千分位
function formatMoney(number, decimals, dec_point, thousands_sep, roundtag) {/** 参数说明&＃xff1a;* number&＃xff1a;要格式化的数字* decimals&＃xff1a;保留几位小数* dec_point&＃xff1a;小数点符号* thousands_sep&＃xff1a;千分位符号* roundtag:舍入参数&＃xff0c;默认 "ceil" 向上取,"floor"向下取,"round" 四舍五入* */if (!number) {number &＃61; 0;}if (!decimals) {decimals &＃61; 2;//默认保留2位小数}if (!dec_point) {dec_point &＃61; &＃39;.&＃39;;}if(!thousands_sep){thousands_sep &＃61; &＃39;,&＃39;;}if(!roundtag){roundtag &＃61; &＃39;round&＃39;;}number &＃61; (number &＃43; &＃39;&＃39;).replace(/[^0-9&＃43;-Ee.]/g, &＃39;&＃39;);roundtag &＃61; roundtag || "ceil"; //"ceil","floor","round"var n &＃61; !isFinite(&＃43;number) ? 0 : &＃43;number,prec &＃61; !isFinite(&＃43;decimals) ? 0 : Math.abs(decimals),sep &＃61; (typeof thousands_sep &＃61;&＃61;&＃61; &＃39;undefined&＃39;) ? &＃39;,&＃39; : thousands_sep,dec &＃61; (typeof dec_point &＃61;&＃61;&＃61; &＃39;undefined&＃39;) ? &＃39;.&＃39; : dec_point,s &＃61; &＃39;&＃39;,toFixedFix &＃61; function (n, prec) {var k &＃61; Math.pow(10, prec);return &＃39;&＃39; &＃43; parseFloat(Math[roundtag](parseFloat((n * k).toFixed(prec * 2))).toFixed(prec * 2)) / k;};s &＃61; (prec ? toFixedFix(n, prec) : &＃39;&＃39; &＃43; Math.round(n)).split(&＃39;.&＃39;);var re &＃61; /(-?\d&＃43;)(\d{3})/;while (re.test(s[0])) {s[0] &＃61; s[0].replace(re, "$1" &＃43; sep &＃43; "$2");}if ((s[1] || &＃39;&＃39;).length {s[1] &＃61; s[1] || &＃39;&＃39;;s[1] &＃43;&＃61; new Array(prec - s[1].length &＃43; 1).join(&＃39;0&＃39;);}return s.join(dec);
}export {formatMoney
}


vue中引用使用方法&＃xff1a;
main.js:
import * as moneyUtils from “./utils/money”;//引入js
Vue.prototype.moneyUtils &＃61; moneyUtils

使用&＃xff1a;
this.moneyUtils.formatMoney(Discount)

标签中引用&＃xff1a;

{{moneyUtils.formatMoney(Discount)}}