js判断时间类型

function isDate(obj) {
    return obj instanceof Date && !isNaN(obj);
}

console.log(isDate(new Date())); // true
console.log(isDate("2023-04-01")); // false

function isValidDate(dateString) {
    const date = new Date(dateString);
    return !isNaN(date.getTime());
}

console.log(isValidDate("2023-04-01T12:00:00Z")); // true
console.log(isValidDate("invalid-date-string")); // false

function isDateTimeFormat(dateString, format = /^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}.\d{3}Z$/) {
    return format.test(dateString);
}

console.log(isDateTimeFormat("2023-04-01T12:00:00.000Z")); // true
console.log(isDateTimeFormat("2023-04-01 12:00:00")); // false