I have tried but not able to do this. Moment.js - Date validation example We can use the isValid() method to check if the date and time object is valid. In order to perform validation, simply pass a date string to the moment … If you want to change the moment Date, see moment#manipulate or moment#set. To get a copy of the native Date object that Moment.js wraps, use moment#toDate. There may be better modern alternatives. In the first example, we get today's date with Moment.js. It takes input from 0-6, where 0 is for Sunday and 6 as Saturday. What I have tried: I have tried with the below code. In the following examples, a JavaScript function is used to check a valid date format against a regular expression. No matter what language you use, working with date values is often a cumbersome process. Moment.js today's date. Parse, validate, manipulate, and display dates and times in JavaScript. Considering using Moment in your project? Example: create a JavaScript file named "validity.js" file and add the following code to it: Store the date object into a variable d.; Check if the variable d is created by Date object or not by using Object.prototype.toString.call(d) method. If the value is greater than the range, it will fall in the next week. Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor. the date formats are working properly in Google chrome but not able to get those dates in IE browser. Later we take each part of the string supplied by user (i.e. dd, mm and yyyy) and check whether dd is a valid date, mm is a valid month or yyyy is a valid year. Date Validation. Tried now with latest 1.7.1 branch and it looks like isValid returns true for much more invalid dates and instead in one case false when the date is actually valid ; If the date is valid then the getTime() method will always be equal to itself. ; If the date is Invalid then the getTime() method will return NaN which is not equal to itself. This will return a copy of the Date that the moment uses, so any changes to that Date will not cause moment to change. The lightweight JavaScript library Moment.js makes working with date and time values a breeze. Could you please help me on this how to fix. I am using moment.js to get the 2 dates those are the from and to to pass my method. We have also checked the leap year factor for the month of February. You can set the day of week using number or string. This method will get/set the day of the week. Another annoying task that Moment.js has greatly simplified is date validation. For more details and recommendations, ... 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