The space between the left and right of the movie ticket seats is empty and cannot be selected

1. Check whether each seat will leave a vacant seat

 checkSeat(element) {
     //  The standard for the  1. Both the left and right sides must be retained   Two compartment seat  +  Maximum extended seat ( That is, the selected seat minus itself )
     // 2. All seats against the wall and sold seats pass directly through 
     // Check left and right 2 A seat 
     const checkNum = 2; // 2 + this.selectedSeatList.length -1
     const gRowBasic = element.gRow;
     const gColBasic = element.gCol;
     let otherLoveSeatIndex = element.otherLoveSeatIndex;
     if (otherLoveSeatIndex != null) {
       //  If it's a couple seat   Don't test 
       return true;
     }
     //  Check the left side of the seat 
     let left = this.checkSeatDirection(gRowBasic, gColBasic, checkNum, '-');
     console.info(left, 'left');
     //  If the left side has been checked out, it is against the aisle directly   return true
     if (left === 'special') {
       return true;
     }
     //  Check the right side of the seat 
     let right = this.checkSeatDirection(gRowBasic, gColBasic, checkNum, '+');
     console.info(right, 'right');
     if (right === 'special') {
       //  Whether or not the left side is in any state   Check that the right side is directly against the aisle   return true
       return true;
     } else if (right === 'normal' && left === 'normal') {
       //  If there are rich seats on both sides   return true
       return true;
     } else if (right === 'fail' && left === 'fail') {
       //  If both left and right sides fail the test   return false
       return false;
     }
     return true;
   },

2. Check that the left and right seats meet the rules

    checkSeatDirection(gRowBasic, gColBasic, checkNum, direction) {
      //  Number of vacancies 
      let emptySeat = 0;
      let x = 1; //  Check location   Only in x There is an aisle in the position of , sold , maintenance 
      for (let i = 1; i <= checkNum; i++) {
        let iter; //  according to  gRow gCol direction  Find the order on the left side of the inspection seat checkNum
        if (direction === '-') {
          iter = this.seatList.find((el) => el.gRow === gRowBasic && el.gCol === gColBasic - i);
        } else if (direction === '+') {
          iter = this.seatList.find((el) => el.gRow === gRowBasic && el.gCol === gColBasic + i);
        }
        if (x === i) {
          if (iter === undefined) {
            //  aisle 
            return 'special';
          }
          if (iter.nowIcon === iter.soldedIcon || iter.nowIcon === iter.fixIcon) {
            //  Sold or repaired 
            return 'special';
          }
          if (iter.nowIcon === iter.selectedIcon) {
            //  Selected   Postpone one 
            x++;
            continue;
          }
        } else {
          if (iter === undefined) {
            //  aisle 
            return 'fail';
          }
          if (iter.nowIcon === iter.soldedIcon || iter.nowIcon === iter.fixIcon || iter.nowIcon === iter.selectedIcon) {
            //  Sold or repaired 
            return 'fail';
          }
        }
        emptySeat++;
        if (emptySeat >= 2) {
          return 'normal';
        }
      }
    },