11 lines
249 B
JavaScript
11 lines
249 B
JavaScript
const isLongYear = (year) => {
|
|
const jan1 = new Date(year, 0, 1);
|
|
const dec31 = new Date(year, 11, 31);
|
|
return (4 == jan1.getDay() || 4 == dec31.getDay())
|
|
}
|
|
|
|
for (let y = 1995; y <= 2045; y++) {
|
|
if (isLongYear(y)) {
|
|
console.log(y)
|
|
}
|
|
}
|