Nasıl bir hata aldın.
şunuda kullanabilirsin
https://www.w3schools.com/jsref/jsref_every.asp

const fruits = ["Banana", "Orange", "Apple", "Mango"];
const a = "Banana";
const b = "Bananas";
function checkFruit(fruit) {
  return fruit != a;
}

function checkFruit1(fruit) {
  return fruit != b;
}
console.log(fruits.every(checkFruit)); // Output: false
console.log(fruits.every(checkFruit1)); // Output: true