Check if a given integer is a prime number

const isPrime = (n) =>
    n > 1 &&
    Array(Math.floor(Math.sqrt(n)) - 1)
        .fill(0)
        .map((_, i) => i + 2)
        .every((i) => n % i !== 0);

const isPrime = (n: number): boolean =>
    n > 1 &&
    Array(Math.floor(Math.sqrt(n)) - 1)
        .fill(0)
        .map((_, i) => i + 2)
        .every((i) => n % i !== 0);