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admin 发表于 2022-3-24 11:20:22

Validating a Date Format

This is used to validate a date in a specific format. The code example is to validate whether it is a valid dd/MM/yyyy Date Format.

function ValidateDateFormat(input) {
    var dateString = input.value;

    var regex = /(((0|1)\/(0|1)|2|3)\/((19|20)\d\d))$/;

    //Check whether valid dd/MM/yyyy Date Format.
    if (regex.test(dateString) || dateString.length == 0) {
      ShowHideError("none");
    } else {
      ShowHideError("block");
      input.focus();
      input.select();
    }
};

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