两行代码轻松搞定JavaScript日期验证

var originalYear = 2016;
var originalMonth = 12;
var originalDay = 32;
var date = new Date(originalYear, originalMonth - 1, originalDay);
var year = date.getFullYear();
var month = date.getMonth() + 1;
var day = date.getDate();
console.log(year + '-' + month + '-' + day); // 2017-1-1 

 var validateDate = function (originalYear, originalMonth, originalDay) {
 var date = new Date(originalYear, originalMonth - 1, originalDay);
 var year = date.getFullYear();
 var month = date.getMonth() + 1;
 var day = date.getDate();
 return year == originalYear && month == originalMonth && day == originalDay;
} 

console.log(validateDate()); // false
console.log(validateDate(-1, -1, -1)); // false
console.log(validateDate('', '', '')); // false
console.log(validateDate([], [], [])); // false
console.log(validateDate({}, {}, {})); // false

// 平年二月。
console.log(validateDate(2015, 2, 29)); // false
// 闰年二月。
console.log(validateDate(2016, 2, 29)); // true
console.log(validateDate(2016, 6, 30)); // true
console.log(validateDate(2016, 6, 31)); // false
console.log(validateDate('2016', '01', '01')); // true