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I need a regular expression for date format: dd-mm-yyyy in Javascript.
409
For dd-mm-yyyy format, use ^(0[1-9]|[12][0-9]|3[01])[- /.] (0[1-9]|1[012])[- /.] (19|20)\d\d$. You can find additional variations of these regexes in RegexBuddy's library.
To format a date as dd/mm/yyyy:Use the getDate() , getMonth() and getFullYear() methods to get the day, month and year of the date. Add a leading zero to the day and month digits if the value is less than 10 .
The regex matches on a date with the YYYY/MM/DD format and a "Date of birth:" or "Birthday:" prefix (Year min: 1900, Year max: 2020). For example: Date of birth: 1900/12/01. Date of birth: 2019.01.
To convert a dd/mm/yyyy string to a date:Split the string on each forward slash to get the day, month and year. Pass the year, month minus 1 and the day to the Date() constructor. The Date() constructor creates and returns a new Date object.
Here is Regex for multiple date formats working for me :
//dd.MM.yyyy
var date_regex = /^(0[1-9]|1\d|2\d|3[01])\.(0[1-9]|1[0-2])\.(19|20)\d{2}$/;
alert(date_regex.test("02.02.1991"));
// //dd/mm/yyyy
// var date_regex = /^(0[1-9]|1\d|2\d|3[01])\/(0[1-9]|1[0-2])\/(19|20)\d{2}$/;
// alert(date_regex.test("02/12/1991"));
// //dd-mm-yyyy
// var date_regex = /^(0[1-9]|1\d|2\d|3[01])\-(0[1-9]|1[0-2])\-(19|20)\d{2}$/;
// alert(date_regex.test("02-12-1991"));
// //mm/dd/yyyy
// var date_regex = /^(0[1-9]|1[0-2])\/(0[1-9]|1\d|2\d|3[01])\/(19|20)\d{2}$/;
// alert(date_regex.test("12/02/1991"));
// //yyyy.MM.dd
// var date_regex = /^((19|20)\d{2})\.(0[1-9]|1[0-2])\.(0[1-9]|1\d|2\d|3[01])$/;
// alert(date_regex.test("1991.12.02"));
// //yyyy/MM/dd
// var date_regex = /^((19|20)\d{2})\/(0[1-9]|1[0-2])\/(0[1-9]|1\d|2\d|3[01])$/;
// alert(date_regex.test("1991/12/02"));
// //yyyy-MM-dd
// var date_regex = /^((19|20)\d{2})\-(0[1-9]|1[0-2])\-(0[1-9]|1\d|2\d|3[01])$/;
// alert(date_regex.test("1991-12-02"));
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