getters

getters.js

  getDiscountSum (state, getters) {
    let total = getters.getResult // connect getters getResult
    for (let i = 0; i < state.discount.length; i += 1) {
      if (state.discount[i].name === state.discountStatus) {
        const discount = total * state.discount[i].value / 100
        return discount
      }
    }
  },
  getPromoSum (state, getters) {
    let total = getters.getResult // connect getter getResult
    if (state.promocode.status) {
      const promo = total - total * state.promocode.percent / 100
      return promo
    }
  },
  getResult (state) {
    let total = state.order.reduce((sum, c) => sum + c.quantity * c.price, 0)
    return total
  },