Check whether the Time is in HH:MM AM/PM format

Scenario: You have to find if the time string is in hh:mm am/pm format. This code will work even if the hour has only one digit.

Function:

function isValidTimeFormat(timeStr) {

        const regex = /^([1-9]|1[0-2]):([0-5][0-9])s([APap][Mm])$/;

        return regex.test(timeStr);

      }

Result:

function will return true for both 5:00 am and 05:00 am values and will return false if the string is not in the above-mentioned format.