vue-reverse/examples/plugins/format.js

export default {
  install (vue) {
    const format = {
      price (price, currency = 'rmb') {
        const currencyList = {
          rmb: {
            icon: '¥',
            unit: '元',
          },
        }
        return currencyList[currency].icon +
          Number(price).toFixed(2) +
          currencyList[currency].unit
      },
    }
    vue.prototype.$format = format
    vue.format = format
  },
}