Date format convert javascript

Question

I am trying to convert \"July 24 2013\" to \"DD-MM-YYYY\" with javascript but I keep getting and error.

I am using new Date(\'July 24 2013\').format(\"DD-MM-YY

Answer 1

Bellow is simple, portable, pure JS implementation based on Java date format:

function date_format( d, p ) {
    var pad = function (n, l) {
        for (n = String(n), l -= n.length; --l >= 0; n = '0'+n);
        return n;
    };
    var tz = function (n, s) {
        return ((n<0)?'+':'-')+pad(Math.abs(n/60),2)+s+pad(Math.abs(n%60),2);
    };
    return p.replace(/([DdFHhKkMmSsyZ])\1*|'[^']*'|"[^"]*"/g, function (m) {
        l = m.length;
        switch (m.charAt(0)) {
                case 'D': return pad(d.getDayOfYear(), l);
                case 'd': return pad(d.getDate(), l);
                case 'F': return pad(d.getDayOfWeek(i18n), l);
                case 'H': return pad(d.getHours(), l);
                case 'h': return pad(d.getHours() % 12 || 12, l);
                case 'K': return pad(d.getHours() % 12, l);
                case 'k': return pad(d.getHours() || 24, l);
                case 'M': return pad(d.getMonth() + 1, l );
                case 'm': return pad(d.getMinutes(), l);
                case 'S': return pad(d.getMilliseconds(), l);
                case 's': return pad(d.getSeconds(), l);
                case 'y': return (l == 2) ? String(d.getFullYear()).substr(2) : pad(d.getFullYear(), l);
                case 'Z': return tz(d.getTimezoneOffset(), ' ');
                case "'":
                case '"': return m.substr(1, l - 2);
                default: throw new Error('Illegal pattern');
        }
    });
};
console.log( date_format( new Date(), 'yyyy.mm.dd kk:MM:ss Z' ) );
console.log( date_format( new Date(), 'MM/dd/yyyy HH:mm:ss' ) );

Above code is based on http://llamalab.com/js/date/Date.js (LGPL)