两个条件的三元运算符

Question

I wrote the basic javascript which take year and check conditions whether it is leap year or not how can I make ternary operator like that

gYear=prompt("enter the year");
let abc = (yr) => {
  alert((yr / 4 === 0 && !(yr / 100) === 0 )? "leap year" : "not leap year");
};
abc(gYear);

Answer 1

I find it's usually best to not even use the ternary operator. Some languages don't even have one:

 function isleapYear(year) { return year % 4 === 0 && year % 100 !== 0; } for (let y of [2021, 2020, 2000]) { let b = isleapYear(y); console.log(b); }