Preventing invalid date in momentjs

Question

I have this code :

var dt = moment(cdt).format("L");

At some dates moment(cdt).format("L") returns Invalid date , So how can I return an empty string instead invalid date .

Answer 1

With moment.js you can check if a date is valid with the method .isValid() , for instance:

moment(cdt, 'L', true).isValid()

moment("12/13/2020", "DD/MM/YYYY", true).isValid() should return False .