Array won't add, in Javascript

njaohnt · September 19, 2011

I don't see why that would help. The purpose of the page is so that users can see the difference between their time and the heliohost server.

... Any way http://jz.jzdb.heliohost.org/servertime.php

Byron, it is not that problem.

September 19, 2011

So, the beatified code:

<html>
<head>
<title>Time</title>
<script type="text/javascript">
function d() {
    var j = [18, 14, 37];
    var t = new Date();
    var c = [t.getHours, t.getMinutes, t.getSeconds];
    var a = [c[0] - j[0], c[1] - j[1], c[2] - j[2]];
    var b = "After Jz's";
    if (a[0] < 0) {
        a[0] = j[0] - c[0];
        b = "Before Jz's";
    }
    if (a[1] < 0) a[1] = j[1] - c[1];
    if (a[2] < 0) a[2] = j[2] - c[2];
    for (i = 0; i < 3; i++)
    document.getElementById("r" + i).innerHTML = a[0];
    document.getElementById("r").innerHTML = b;
    document.getElementById("t").innerHTML = "Your computer's date and time:" + Date() + "<br>Jz's date and time:Sunday 18 September 2011 6:14:37.1316394877.92 PM";
}
</script>
</head>
<body onload="d()">
<div id="t">
</div>
<br>
<div id="r0">
</div>
h
<div id="r1">
</div>
m

A lot easier to see now.

First problem:

document.getElementById("r")

There is no element with an ID of "r".

Byron · September 19, 2011

Byron, it is not that problem.

Okay then, you tell me why your script isn't working?

Is this what your looking for?

http://byrondallas.heliohost.org/temp/java-time-php.php

njaohnt · September 19, 2011

Yes there is xaav. Look at it again.

Byron, that is what I want, but with a thing at the bottom that has the difference.

Byron · September 20, 2011

Byron, that is what I want, but with a thing at the bottom that has the difference.

I really don't think this can be done since php is server side and javascript is client side. If it can, it's beyond me.

njaohnt · September 20, 2011

It can byron.

Byron · September 20, 2011

It can byron.

If nobody here at helionet can show you how, try this forum.

http://www.codingforums.com

I'm sure if it can be done, somebody there will know how. If you come up with a solution, please post it back here in this thread.

vol7ron · November 3, 2011

QUOTE (njaohnt @ Sep 19 2011, 08:11 PM)
It can byron.

If nobody here at helionet can show you how, try this forum.

http://www.codingforums.com

I'm sure if it can be done, somebody there will know how. If you come up with a solution, please post it back here in this thread.

No need to go elsewhere, I can help you out.

Your problem is this line:

var c = [t.getHours, t.getMinutes, t.getSeconds];

You're storing the function reference and not the result. You should call the functions (add parentheses):

var c = [t.getHours(), t.getMinutes(), t.getSeconds()];

It's "NaN" because you then calculate c[0]-j[0] which translates to "t.getHours"-12 (or some other number), so when you do a calcuation of a non-number string minus a number, it'll result to NaN. if you store the result of t.getHours() in c[0], the calculation would be two numbers (eg 9-8)

Note: I didn't do the work for you, I only removed the NaN bug, you'll have to debug your code to get it to work:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
 <meta name="generator" content="HTML Tidy for Linux/x86 (vers 11 February 2007), see www.w3.org" />
 <title>Time</title>
 <script type="text/javascript">
 //<![CDATA[
 function d() 
 {
   var j = [ <?php echo idate("H"); ?> , <?php echo idate("i"); ?> , <?php echo idate("s"); ?> ];
   var t = new Date();
   var c = [t.getHours(), t.getMinutes(), t.getSeconds()];
   var a = [c[0] - j[0], c[1] - j[1], c[2] - j[2]];
   var b = "After Ours";
   if (a[0] < 0) {
       a[0] = j[0] - c[0];
       b = "Before Ours";
   }
   if (a[1] < 0) a[1] = j[1] - c[1];
   if (a[2] < 0) a[2] = j[2] - c[2];
   for (i = 0; i < 3; i++)
   document.getElementById("r" + i).innerHTML = a[0];
   document.getElementById("r").innerHTML = b;
   document.getElementById("t").innerHTML = "Your computer's date and time:" + Date() + "<br>Our date and time:<?php 
     $aop=" AM "; if (idate('H')>12) $aop=" PM ";
     $dow=array("Sunday ","Monday ","Tuesday ","Wednesday ","Thursday ","Friday ","Saturday ");
     $mow=array("",'January','February','March','April','May','June','July','August','September','October','November','December');
     $min=idate("i");
     $sec=idate("s");
     if ($min<10)
     $min="0".idate("i");
     if ($sec<10)
         $sec=" 0 ".idate("s");
     $d=array($dow[idate('w')],idate('d'),$mow[idate('m')],idate('Y'),idate('h'),$min,$sec,microtime(get_as_float),$aop);
     echo $d[0]."".$d[1]."".$d[2]."".$d[3]."".$d[4].": ".$d[5].": ".$d[6].".".$d[7]."".$d[8];
?>";
 }
 //]]>
 </script>
</head>
<body onload="d()">
 <div id="t"></div><br />
 <div id="r0"></div>h
 <div id="r1"></div>m
 <div id="r2"></div>s
 <div id="r"></div><button onclick="window.location.href='servertime.php'">Update Time</button>
</body>
</html>

Krydos · November 4, 2011

Thanks for the contribution. This was probably worth digging up an old thread for. ^_^

vol7ron · November 4, 2011

Thanks for the contribution. This was probably worth digging up an old thread for.

Are you stalking my posts? lol. really, these old threads are the most recent threads.

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Array won't add, in Javascript

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