How to parse “dd-MMM-yyyy” or “MMM-dd-yyyy” date string using single regular expression? [duplicate]

Answer 1

First you can convert dd-MMM-yyyy or MMM-dd-yyyy format to dd-MMM-yyyy .

By using : .replace(/([a-zA-Z]{3})-(\d{2})-(\d{4})/,"$2-$1-$3");

Then you can use REGEX : /(\d+)-([a-zA-Z]{3})-(\d{4})/

Code :

var d="DEC-16-1990";
d=d.replace(/([a-zA-Z]{3})-(\d{2})-(\d{4})/,"$2-$1-$3");
var ar=d.match(/(\d+)-([a-zA-Z]{3})-(\d{4})/);
var day=ar[1];    //16
var month=ar[2];  //DEC
var year=ar[3];   //1990

DEMO