MaxSubArry Find

function maxSubArry(arr,num){
    let j = 1;
    let max = -Infinity;
    for(i=0;i<arr.length-num+1;i++){
        var temp = 0;
        for(j=0;j<num;j++){
             temp = temp+arr[i+j];
        }
       if(temp>max){
           max=temp;
          
       }
       
        console.log(temp,max);
    }
    return max;
}

console.log(maxSubArry([2,6,9,2,1,8,5,6,3],[3]));