具有三元运算符语法的 JavaScript 素数检查器函数

Question

我如何改用三元运算符语法重构以下内容？

let divisor = 2;
let isPrime = (num) => {
        if (num % divisor === 0) return false;
        else divisor++;
        return true;
};

console.log(`prime is ${isPrime(83)}`);

Answer 1

您可以使用 conditional operator与 comma : 之后的运算符在 exp2

let divisor = 2;
let isPrime = num => 
  num % divisor === 0 ? false : (++divisor, true);

console.log(`prime is ${isPrime(83)}`);