Since Date implements Comparable, it has a compareTo method just like String does. So your custom Comparator could look like this: public class CustomComparator implements Comparator<MyObject> { @Override public int compare(MyObject o1, MyObject o2) { return o1.getStartDate().compareTo(o2.getStartDate()); } } The compare() method must return an int, so you couldn’t directly return a boolean like you … Read more
In bash (>=4.2) it is preferable to use printf’s built-in date formatter (part of bash) rather than the external date (usually GNU date). As such: # put current date as yyyy-mm-dd in $date # -1 -> explicit current date, bash >=4.3 defaults to current time if not provided # -2 -> start time for shell … Read more
Assuming StartDate and EndDate are of type DateTime: (EndDate – StartDate).TotalDays
Create a new Date() object and call getFullYear(): new Date().getFullYear() // returns the current year Example usage: a page footer that always shows the current year: document.getElementById(“year”).innerHTML = new Date().getFullYear(); footer { text-align: center; font-family: sans-serif; } <footer> ©<span id=”year”></span> by Donald Duck </footer> See also, the Date() constructor’s full list of methods.
I love 10 ways to format time and date using JavaScript and Working with Dates. Basically, you have three methods and you have to combine the strings for yourself: getDate() // Returns the date getMonth() // Returns the month getFullYear() // Returns the year Example: var d = new Date(); var curr_date = d.getDate(); var … Read more
let unix_timestamp = 1549312452 // Create a new JavaScript Date object based on the timestamp // multiplied by 1000 so that the argument is in milliseconds, not seconds. var date = new Date(unix_timestamp * 1000); // Hours part from the timestamp var hours = date.getHours(); // Minutes part from the timestamp var minutes = “0” … Read more
You can create one with:- Date.prototype.addDays = function(days) { var date = new Date(this.valueOf()); date.setDate(date.getDate() + days); return date; } var date = new Date(); console.log(date.addDays(5)); This takes care of automatically incrementing the month if necessary. For example: 8/31 + 1 day will become 9/1. The problem with using setDate directly is that it’s a … Read more
Here’s how I would do it: if (Object.prototype.toString.call(d) === “[object Date]”) { // it is a date if (isNaN(d)) { // d.getTime() or d.valueOf() will also work // date object is not valid } else { // date object is valid } } else { // not a date object } Update [2018-05-31]: If you … Read more
SELECT DATEADD(dd, 0, DATEDIFF(dd, 0, @your_date)) for example SELECT DATEADD(dd, 0, DATEDIFF(dd, 0, GETDATE())) gives me 2008-09-22 00:00:00.000 Pros: No varchar<->datetime conversions required No need to think about locale
The Date object will do what you want – construct one for each date, then compare them using the >, <, <= or >=. The ==, !=, ===, and !== operators require you to use date.getTime() as in var d1 = new Date(); var d2 = new Date(d1); var same = d1.getTime() === d2.getTime(); var … Read more