#Date setdate js code

If adding days shifts the month or year, the changes are handled automatically by the Date object. const d new Date () d.setDate(d.getDate() + 50) Try it Yourself. The setDate () method can also be used to add days to a date: Example. If you later access the room through the other door (d1), then you're just going to find the black cat, of course. const d new Date () d.setDate(15) Try it Yourself. If you call d2.changeCat(black), then you're entering the room through the door d2 and changing the white cat for a black one. When you say d2 = d1, you just build another door to the same room with the same white cat. Imagine there's a room with one door (d1) and inside the room there's a white cat. What you need to do is build another object with the same content: date3 = new Date(date1.getTime()) So when you change it using tDate() or tDate() doesn't matter as well.

#Date setdate js code

Whether you access it viaĭate1.toDateString() or date3.toDateString() doesn't matter. const date new Date('Aug23:15:30') const event new Date() console.log(tDate(date.getDate() + 1)) this code is supposed to return a date but its not returnign a date instead it is returning a number 1603240915215. But there's still just one object with one content (e.g. Let variable date3 point at the same object as variable date1. To put it simply, Date is an object and 'Fri Jul 04 2014' is only its contents. If you're interested in memory management in JavaScript, I suggest you have a look at this: I hope it is clearer with this little explanation. The 2nd and 3rd allocations consist in creating new Date objects, containing a copy of the object in date1.

In this example, there are three memory allocations for 3 different objects. Var date3 = new Date(date1) // Memory allocation n☃ Var date2 = new Date(date1) // Memory allocation n☂ The following code demonstrates the usage of. Example 2: var date1 = new Date() // Memory allocation for an object The setDate function is called on a Date object, which updates the day of the month in the Date object. Note: The object that was originally in date2 still exists, but is not referenced anymore (it will be garbage-collected). In this example, there are two memory allocations but only one of them is useful as the object in date2 is not used. You can rate examples to help us improve the quality of examples.

Var date3 // Obviously no memory allocation hereĭate3 = date1 // No memory allocation either, date2 and date3ĭate2 = date1 // become references of the object in date1 These are the top rated real world JavaScript examples of extracted from open source projects. Var date2 = new Date(1991,4,11) // Memory allocation n☂ Example 1: var date1 = new Date() // Memory allocation for an object Otherwise, your variables all point to the same Date object (initially referenced by date1). You need to make a copy of your dates, like this: date3 = new Date(date1.getTime())