Sort an Object Array by Date in JavaScript
In this article, we will see the methods to sort an array of an object by date, there is a number of methods but we’re going to see a few of the most preferred methods.
Javascript Date Object: The Date object in JavaScript is used to represent a moment in time. This time value is since 1 January 1970 UTC (Coordinated Universal Time). We can create a date using the Date object by calling the new Date() constructor as shown in the below syntax.
Syntax:
new Date(); new Date(value); new Date(dateString); new Date(year, month, day, hours, minutes, seconds, milliseconds);
Example 1: This example sorts the array of objects by date by using the Date object.
Javascript
let Arr = [ { id: "1", date: "Mar 11 2012 10:00:00 AM" }, { id: "2", date: "Mar 8 2012 08:00:00 AM" }];function zambiatek_outer() { Arr.sort(function (a, b) { return new Date(a.date) - new Date(b.date); }); console.log(JSON.stringify(Arr));}zambiatek_outer(); |
Output
[{"id":"2","date":"Mar 8 2012 08:00:00 AM"},{"id":"1","date":"Mar 11 2012 10:00:00 AM"}]
Example 2: This example is the same as the previous one but with a little modification in the sort function.
Javascript
let Arr = [ { id: "1", date: "Mar 12 2012 10:00:00 AM" }, { id: "2", date: "Mar 8 2012 08:00:00 AM" }];function zambiatek_outer() { Arr.sort(GFG_sortFunction); console.log(JSON.stringify(Arr));}function GFG_sortFunction(a, b) { let dateA = new Date(a.date).getTime(); let dateB = new Date(b.date).getTime(); return dateA > dateB ? 1 : -1;};zambiatek_outer(); |
Output
[{"id":"2","date":"Mar 8 2012 08:00:00 AM"},{"id":"1","date":"Mar 12 2012 10:00:00 AM"}]
