JS under Calculate the current date (the day) after the n days of Nan or undefined the case

Objective:

To help customers make an order system, a date of 1, a date of 2, by default, the date 1 is the day, the date 2 for tomorrow, but some doubts that the date 2 occasionally appear Nan, Today I saw the same problem in segmentfault.com, so I think it is necessary to revisit the problem at that time. Do a good job.

<!--date () NAN start-->

The following code is a problem, not recommended for direct use, just temporary version, subsequent modification

<! DOCTYPE html>"en">"UTF-8"> <title>date NaN undefined</title>"Today"></div> <div id="NextDay"></div> <script>varmonth = {        "Jan":" on",        "Feb":" Geneva",        "Mar":"Geneva",        "APR":"Geneva",        " May":" to",        "June":" .",        "Jul":" -",        " the":" ,",        "Sep":" the",        "Oct":"Ten",        "Nov":" One",        "Dec":" A"    }; function GetDate (e) {varD,thedate,array; if(e.time) {varArray =E.time.split (E.symbol); D=NewDate (array[0]+e.symbol+array[1]+e.symbol+ (parseint (array[2])+E.N) ;//There is a serious problem here (this code cannot be used directly)}Else{d=NewDate (); } Array= D.todatestring (). Split (" "); returnarray[3]+e.symbol+month[array[1]]+e.symbol+array[2]; } Today= GetDate ({"symbol":"/"}); document.getElementById ("Today"). InnerHTML =today; document.getElementById ("NextDay"). InnerHTML = GetDate ({"symbol":"/"," Time": Today, "n": 1}); </script></body>
Reason: mainly because IE under only support "/" delimiter.