How To Find Format (not Validate Against A Particular Format) Of Date With Moment.js

I have a given Date string, which is already formatted by moment.js by someone. I want to get that format. I have checked existing questions and came across this one - check format

Solution 1:

You can use Parse Date Format plug-in:

This plugin extracts the format of a date/time string.

Here an example (anyway it returns MMM D, YYYY instead of MMM DD, YYYY):

functiongetMomentDateFormat(input){
  return moment.parseFormat(input);
}

var field = { value: "Nov 30, 2017" };
var dateString = field.value; //"Nov 30, 2017"var dateFormat = getMomentDateFormat(dateString);

console.log(dateFormat);

<scriptsrc="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.19.2/moment.min.js"></script><scriptsrc="https://gr2m.github.io/moment-parseformat/moment-parseformat.js"></script>

PS. Do not use scripts directly from https://gr2m.github.io/, refer github repo.