Goshko the rabbit

function solve(input) {
    var directions = [],
        matrix = [],
        matrixRow = [],
        inputLine = [],
        index,
        startRow = 0,
        startCol = 0,
        currentRow = startRow,
        currentCol = startCol,
        direction,
        i,
        movedToNewCell,
        cell,
        eatenVegetables = {},
        eatenVegetablesPrint,
        cellsPassed = [];

    //parse input
    for (index in input) {
        inputLine = input[index].split(', ');
        if (Number(index) === 0) {
            directions = inputLine;
        } else {
            matrix.push(inputLine);
        }
    }

    //initialize an object to store the eaten vegetables count
    eatenVegetables = {
        'lettuces': 0,
        'cabbages': 0,
        'turnips': 0,
        'carrots': 0,
        'wallHits': 0
    };

    //move through the matrix and eat vegetables
    //move as many times as there are directions
    for (i = 0; i < directions.length; i++) {
        direction = directions[i];
        movedToNewCell = false;
        switch (direction) {
            case 'up':
                if (currentRow > 0) {
                    currentRow -= 1;
                    movedToNewCell = true;
                } else {
                    eatenVegetables.wallHits++;
                }
                break;
            case 'down':
                if (currentRow < matrix.length - 1) {
                    currentRow += 1;
                    movedToNewCell = true;
                } else {
                    eatenVegetables.wallHits++;
                }
                break;
            case 'left':
                if (currentCol > 0) {
                    currentCol -= 1;
                    movedToNewCell = true;
                } else {
                    eatenVegetables.wallHits++;
                }
                break;
            case 'right':
                if (currentCol < matrix[currentRow].length - 1) {
                    currentCol += 1;
                    movedToNewCell = true;
                } else {
                    eatenVegetables.wallHits++;
                }
                break;
        }

        //check if the rabbit has moved to a new cell
        //if he has, he will eat all vegetables there
        //also, we must add the cell (after he has eaten everything)
        //to the result to print it later

        if (movedToNewCell) {
            cell = matrix[currentRow][currentCol];
            var carrotsCount = (cell.match(/({!})/g) || []).length;
            var cabbageCount = (cell.match(/({\*})/g) || []).length;
            var lettuceCount = (cell.match(/({&})/g) || []).length;
            var turnipCount = (cell.match(/({#})/g) || []).length;

            eatenVegetables.carrots += carrotsCount;
            eatenVegetables.cabbages += cabbageCount;
            eatenVegetables.lettuces += lettuceCount;
            eatenVegetables.turnips += turnipCount;

            //replace the eaten vegetables in the cell with @
            cell = cell.replace(/({!})/g, '@');
            cell = cell.replace(/({\*})/g, '@');
            cell = cell.replace(/({&})/g, '@');
            cell = cell.replace(/({#})/g, '@');

            //add the passed cell to an array
            cellsPassed.push(cell);

            //update the cell in the matrix after eating the vegetables
            matrix[currentRow][currentCol] = cell;
        }
    }

    //create an object to print and replace the key names with the ones from the output
    eatenVegetablesPrint = JSON.stringify(eatenVegetables);
    eatenVegetablesPrint = eatenVegetablesPrint.replace("carrots", "!");
    eatenVegetablesPrint = eatenVegetablesPrint.replace("lettuces", "&");
    eatenVegetablesPrint = eatenVegetablesPrint.replace("cabbages", "*");
    eatenVegetablesPrint = eatenVegetablesPrint.replace("turnips", "#");
    eatenVegetablesPrint = eatenVegetablesPrint.replace("wallHits", "wall hits");

    //print the result
    console.log(eatenVegetablesPrint);
    if (cellsPassed.length > 0) {
        console.log(cellsPassed.join('|'));
    } else {
        console.log('no');
    }
}