Validate Date in both format

Question

How to validate date in both format (mm-dd-yy and mm/dd/yy), currently the below codes only validates (mm-dd-yy)

function isValidDate(dateString) {
    if (!/^\d{2}\-\d{2}\-\d{2}$/.test(dateString)) {
        return false;
    }
    var parts = dateString.split("-");
    var day = parseInt(parts[1], 10);
    var month = parseInt(parts[0], 10);
    if (month == 0 || 12 < month) {
        return false;
    }
    var monthLength = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    return (0 < day && day <= monthLength[month - 1]);
}

[Here's](https://stackoverflow.com/questions/16115584/java-processing-multiple-possibly-unknown-date-time-formats) a similar question in java. — parchment, Oct 08 '14 at 06:37

Arun P Johny · Answer 1 · 2014-10-08T06:35:39.453

change the regex to

function isValidDate(dateString) {
    // use - or / as the seprator
    if (!/^\d{2}([-\/])\d{2}\1\d{2}$/.test(dateString)) {
        return false;
    }

    //split using - or /
    var parts = dateString.split(/[-\/]/);
    var day = parseInt(parts[1], 10);
    var month = parseInt(parts[0], 10);
    if (month == 0 || 12 < month) {
        return false;
    }

    var monthLength = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    return (0 < day && day <= monthLength[month - 1]);
}

score 0 · Answer 2 · answered Oct 08 '14 at 06:34

0

This pattern will validate date format(mm/dd/yy)

private static final String DATE_PATTERN = 
          "((0?[1-9]|1[012])/0?[1-9]|[12][0-9]|3[01])/(\\d\\d))";

answered Oct 08 '14 at 06:34

Santosh Pandey

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Validate Date in both format

2 Answers2