JS精度問題 Vue中使用 解決方案 math.js
npm install mathjs
import { create, all } from 'mathjs'
const config = {
number: 'BigNumber',
precision: 20
}
const math = create(all, config);
export default {
methods: {
// 除
numberExcept: function (arg1, arg2) {
return math.divide(arg1, arg2);
},
//乘
numberRide: function (arg1, arg2) {
return math.multiply(arg1, arg2);
},
//加
numberAdd:function (arg1,arg2) {
return math.add(arg1, arg2);
}
//減
numberSub:function (arg1,arg2) {
return math.add(arg1, -arg2);
}
}
}
js/引入，初始化后 ，，金額精度處理
function getMath(number) {
const math = window.math.create(window.math.all, {
number: 'BigNumber',
precision: 14
});
return Number(math.format(number, 14))
}