JSFiddle - React, Tailwind, and code Playground

JavaScript

console.clear();
// Compare 2 nested arrays, do something if values don't match
function CompareArrays(arr1, arr2){
	
	for(var i=0; i<arr1.length; i++){
		if( typeof arr1[i] === "object"){
			// traverse into nested array
		     CompareArrays( arr1[i], arr2[i] );
		}else{
			if (arr1[i] !== arr2[i]){
				// do something!
				console.log( "mismatch @ "+ i +" a1: "+arr1[i]+" a2: "+ arr2[i]);
            }
		}
	}
}

var a1 = [1,2,3,["a","b","c"],4,5,6,["d","e","f"]];
var a2 = [1,2,5445,["a","tt","c"],4,5,336,["d","edee","ffdf"]];

CompareArrays( a1, a2);