react 插件处理 数字计算

import np from "number-precision";

 // 转化成“万”为单位
const money = (n) => {
  let m;
  if ((n / 1 >= 1) && (n / 10000 < 1)) {
    m = np.times(n, 1) + "元";
  } else if (n / 10000 >= 1) {
    m = ((Math.floor(np.divide(n, 10000)) + "万") + ((n % 10000) === 0 ? "" : ((n % 10000) + "元")));
  } else {
    m = "--";
  }
  return m;
};

import numeral from "numeral";

//数字千分位计数

return `${numeral(text).format("0,0")}`;

npm install number-precision --save
//数字计算
import np from "number-precision" 

方法：
NP.strip(num)                                // strip a number to nearest right number
NP.plus(num1, num2, num3, ...)     // addition, num + num2 + num3, two numbers is required at least.   相加
NP.minus(num1, num2, num3, ...)  // subtraction, num1 - num2 - num3    相减
NP.times(num1, num2, num3, ...)  // multiplication, num1 * num2 * num3  相乘
NP.divide(num1, num2, num3, ...) // division, num1 / num2 / num3           相除
NP.round(num, ratio)                   // round a number based on ratio