Javascript简写

Question

如果我可以说:

var big = (x > 10) ? true : false;

代替:

var big;
if (x > 10) {
    big = true;
}
else {
    big = false;
}

我该如何缩短它？

var now = new Date

if (now.getHours() < 5) {
    return "late night pick me up";
}
else if (now.getHours() < 9) {
    return "breakfast";
}
else if (now.getHours() < 13) {
    return "lunch";
}
else if (now.getHours() < 17) {
    return "afternoon snak";
}
else {
    return "dinner";
}

非常感谢!

Answer 1

var now = new Date().getHours();

return now < 5 ? "late night pick me up" :
       now < 9 ? "breakfast" :
       now < 13 ? "lunch" :
       now < 17 ? "afternoon snak" : "dinner";