There is a function, it compares 2 arrays for a match, if they match: true, otherwise: false

But the conditions say that the array can have a null object and if it is present in the array, you need to output false. But I cannot understand why my code does not work, I tried to write in different ways, but the output is the same, no matter whether there is null in the array or not

var isSameTree = function(p, q) {
    for(let i = 0; i <= p.length; i++) {
        for(let j = 0; j <= q.length; j++) {
            if(p[i] || q[j] == null) {
                return false
            }
                if(p[i] == q[j]) {
                    return true
                } else {
                    return false   
            }
        }
    }
};
console.log(isSameTree([1,null,2], [1,2]));

Your input
[1,2,3],[1,2,3]

Output
false

Expected
true