Function to test for identical array

gistfile1.txt

const identical_Test  = arr => {
    for(let i = 0; i < arr.length - 1; i++) {
            if(arr[i] !== arr[i+1]) {
                return false;
            }
        }
        return true;
}


var arrElement = ["avk", "avk", "avk", "avk"];
console.log(identical_Test(arrElement));