Bunny Kill

function solve(arr) {
    'use strict';
    let matrix = [];
    let snowBallDamage = 0;
    let killedBunnies = 0;
    let matrixRow = arr.length-1;
    let matrixCol = arr[0].split(/\s+/).length;
    let coor = arr[arr.length-1]
        .split(' ')
        .filter(a=>a !== '');
    for (let i = 0; i < arr.length-1; i++) {
        matrix.push(arr[i].split(/\s+/).map(Number));
    }
    for (let i = 0; i <coor.length; i++) {
        let innerArr = coor[i].split(/[,]/).filter(a=>a!=='').map(Number);
        let bombRow = Number(innerArr[0]);
        let bombCol = Number(innerArr[1]);
        let bombValue = matrix[bombRow][bombCol];
        for (let row = bombRow-1; row <= bombRow+1; row++) {
            for (let col = bombCol-1; col <= bombCol+1; col++) {
                if((row>=0)&&(col>=0)&&(row < matrixRow)&&(col < matrixCol)){
                    matrix[row][col] -= bombValue;
                }
            }
        }
        killedBunnies++;
        snowBallDamage += bombValue;
    }
    for (let row = 0; row < matrix.length; row++) {
        for (let col = 0; col < matrix[row].length; col++) {
            if(matrix[row][col]>0){
                snowBallDamage += matrix[row][col];
                killedBunnies++;
            }
        }
    }
    console.log(snowBallDamage);
    console.log(killedBunnies);
}
solve(['10 100 100',
'100 100 100',
'100 100 100',
'0,0 2,2']);