Check If Equal Value in Multiple Arrays [duplicate]

I have 3 arrays named “localCodes”, “standardCodes”, and “specialCodes”. I am trying to confirm if there are any distinct values that appear in all 3 arrays.

What is the most efficient way of going about this?

EDIT:

Below is the code I was playing with, I just feel like there is a simpler way here that I am not getting

Example data set:

localCodes = [1,2,3,4]
standardCodes = [10,2,11,44]
specialCodes = [99,98,89,2]

With that set I would want to return true because 2 is found in each of the 3 arrays.

var longest = localCodes
var longFlag = 'local'
if(standardCodes.length > longest.length){
    longest = standardCodes
    longFlag = 'standard'
}
if(specialCodes.length > longest.length){
    longest = specialCodes
    longFlag = 'special'
}

for(l=0; l<longest.length; l++){
    if(longFlag == 'local'){
        //code here
    }
    if(longFlag == 'standard'){
        //code here
    }
    if(longFlag == 'special'){
        //code here
    }
}