const arr = [NaN];
console.log(arr.indexOf(NaN));
console.log(arr.includes(NaN));
WebDEV #test #Frontend
Выберите правильный вариант 👇🏼
WE WebDEV @webb_dev · 8.3K subscribers const arr = [NaN];
console.log(arr.indexOf(NaN));
console.log(arr.includes(NaN));