Check if an array contains any element of another array in JavaScript

Question

I have a target array [\"apple\",\"banana\",\"orange\"], and I want to check if other arrays contain any one of the target array elements.

For example:

Answer 1

console.log("searching Array: "+finding_array);
console.log("searching in:"+reference_array);
var check_match_counter = 0;
for (var j = finding_array.length - 1; j >= 0; j--) 
{
    if(reference_array.indexOf(finding_array[j]) > 0)
    {
        check_match_counter = check_match_counter + 1;
    }
}
 var match = (check_match_counter > 0) ? true : false;
console.log("Final result:"+match);