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