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JavaScript - How To Find Round Trip Time Of A Request
I was wondering if there is a way to find the total round trip time of a request. Addins like firebug and chromes console show you this round trip time but i was hoping there was a way to extract it from the response itself.
I would also like to know the response time from when the server sent the request and the client received it. I do not think this is possible since the server and client have different timing systems but it would be very useful. Similar TutorialsHi, I am trying to make a fuinction that, when called, will return the string that is retrned in text form from my php code. This is what i currently have, but it is just failing when it is run, what am i doing wrong? Code: function shortenUrl(url) {
var response;
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET", "http://10.1.1.10/projects/short/?ext&url=" + encodeURIComponent(url), false);
xmlhttp.send(null);
xmlhttp.onload = function() {
var response = xmlhttp.responseText;
return response;
}
return "Failed!";
}
alert(shortenUrl("http://www.google.com.au/"));
Thanks Edit: ohh, and this is running chrome, so no standards issues Hi i want to find out the idle time when there is no http request is going on... i dont want to track any mouse or key board events... i dont want that... i read these thread but it is only about screen idle time http://www.codingforums.com/showthre...t=33068&page=2 i am trying to track the time when there is no transaction going between client and server and no http request is sending . if i will get that time then that time i can use to load my additional javascript files... so further transaction of user will become speed up.... i appreciate your help THANKS ok, i'm sure you all will laugh at this, but it seems really bizzario to me. i have two small routines worked out. routine G gets a value out of the db and brings it back to the browser script. routine P puts a value into the db from the browser script. they both run fine. but......... you have to turn the browser totally off and restart it after retrieving a value out of the db (?) why? is this some kind of "clear memory" i need to be doing. its like the last value i retrieved thru the server is stuck in memory and keeps coming up, and it won't flush out until i turn the browser off and restart it. is this a Javascript problem or a PHP problem? i dont' have a clue, maybe i need to somehow flush the memory in the PHP file after i echo() back the result.? is that normal? thanks, Paul Just started to learn java & came up with the following, but can't get the math.round to work. Anyone able to tell me where I'm going wrong please ??? <p> <script type="text/javascript">// <![CDATA[ var metrics = { "mm" : 1, "cm" : 10, "m" : 1000, "inch" : 25.4, "foot" : 304.8 }; function roundNumber(rnum, rlength) { // Arguments: number to round, number of decimal places var newnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength); document.roundform.numberfield.value = parseFloat(newnumber); // Output the result to the form field (change for your purposes) } function roundme(len, wid, sq){ math.round.len; wid = math.round(wid); sq = math.round(sq); alert(len); }; function roundNumber(rnum, rlength) { // Arguments: number to round, number of decimal places var newnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength); document.roundform.numberfield.value = parseFloat(newnumber); // Output the result to the form field (change for your purposes) }; function changeme(id, action) { var val = document.getElementById("sizegroup"); if (val.style.display == 'none') { val.style.display = 'block' } else { val.style.display = 'none' } }; function convert(num, dec){ var val = document.getElementById("boxa").value; var val2 = document.getElementById("boxb").value; if(isNaN(val)){return val}; if(isNaN(val2)){return val2}; document.getElementById("boxc").value = val * metrics[document.getElementById("choice1").value]/ metrics[document.getElementById("choice3").value]; metrics[document.getElementById("choice1").value]/ metrics[document.getElementById("choice3").value]; document.getElementById("boxd").value = val2 * metrics[document.getElementById("choice2").value]/ metrics[document.getElementById("choice4").value]; document.getElementById("sqmtrs").value = document.getElementById("boxc").value * document.getElementById("boxd").value ; document.getElementById("boxc").value = math.round(document.getElementById("boxc").value); }; var interval = null; function watchChanges(){ interval == null ? setInterval("convert()", 500) : clearInterval(interval); } // ]]></script> </p> <p>Length in imperial-metric / Width in imperial-metric</p> <div><input id="boxa" style="width: 40px;" onfocus="watchChanges()" onblur="watchChanges()" type="text" /><select id="choice1" onchange="convert();"> <option value="mm">millimeters</option> <option value="cm">centimeters</option> <option value="m">metres</option> <option selected="selected" value="foot">feet</option> <option value="inch">inches</option> </select> <input id="boxb" style="width: 40px;" onfocus="watchChanges()" onblur="watchChanges()" type="text" /><select id="choice2" onchange="convert()"> <option value="mm">millimeters</option> <option value="cm">centimeters</option> <option value="m">metres</option> <option selected="selected" value="foot">feet</option> <option value="inch">inches</option> </select></div> <div><input id="boxc" style="width: 40px;" type="text" disabled="disabled" /><select id="choice3" onchange="convert()"> <option value="mm">millimeters</option> <option value="cm">centimeters</option> <option selected="selected" value="m">metres</option> <option value="foot">feet</option> <option value="inch">inches</option> </select> <input id="boxd" style="width: 40px;" type="text" disabled="disabled" /><select id="choice4" onchange="convert()"> <option value="mm">millimeters</option> <option value="cm">centimeters</option> <option selected="selected" value="m">metres</option> <option value="foot">feet</option> <option value="inch">inches</option> </select></div> <p> </p> <div>Total sq metres : <input id="sqmtrs" style="width: 40px;" type="text" value="" disabled="disabled" /></div> <p> </p> <div class="label">Please round up to half a metre when choosing</div> <table border="0" cellspacing="0" cellpadding="5"> <tbody> <tr> <td>Round:</td> <td><input type="text" name="numberfield" value="" /> to <input type="text" name="decimalfield" value="2" size="3" /> decimal places</td> </tr> <tr> <td>Result:</td> <td><input type="text" name="roundedfield" value="" /> <input onclick="roundNumber(numberfield.value, decimalfield.value);" type="button" value="Calculate" /></td> </tr> </tbody> </table> Hey Guys, I'm working on a site and it needed borders with opacity, and since you can do it with CSS I done it With jQuery. But now I would like to round the corners of it, I did try border-radius, but it's only effecting the containing div not the borders(see below). Is there a solution to this? Here's the small snippet of JS: PHP Code: $('.mainContent').border({ width: 6, color: 'white', alpha: .4 }); Hi, First time user of Javascript and built an online calculator, trouble is I dont know where or how to code it so the answer ends with only 2 decimals I have embedded code, help appreciated. Personally I think it's a miracle the darn thing works. Link to page it's on. Any help appreciated, I have searched and read but after hours of trying stuff gave up. <!-- function treevalue() { document.volume.result.value=(((3.14159*((document.volume.radius.value)*(document.volume.radius.valu e)))*(document.volume.height.value))/3)*(document.volume.base.value)*(document.volume.e.value)*(document.volume.fv.value)*(document.volum e.l.value); } // --> Thanks Eric i had to create a function to calculate percentage and round to integer need 2 parameters of item and sum function will return value of item variable divide the sum by 100 and round to nearest integer using Math.round this is my code that i came up with Code: function calcPercent(item,sum){ // script element to calculate the percentage which is rounded to the nearest integer
var items = Math.round( (item/sum)*100); // script element to get the percentage
return items;
}
calcPercent(1, 3);
Does this make sense? thanks Having trouble with the alert(Math.round coding. "r" is the results or final value, and I want to divide this result/final value by "f" I have alert(Math.round(r / f) + ' calories/day to burn); but I its coming up saying NaN calories/day to burn. How do I divide "f" into "r" correctly? Code: }
function calculate() {
var f = document.forms[0], g, w, f, h, a, l, r;
for (var i=0; i<(f.length-1); i++) {
if (f.elements[i].selectedIndex == 0) {
alert('Sorry, all options must be selected.');
return false;
}
}
g = f.g.options[f.g.selectedIndex].value;
w = f.w.options[f.w.selectedIndex].value;
h = f.h.options[f.h.selectedIndex].value;
a = f.a.options[f.a.selectedIndex].value;
l = f.l.options[f.l.selectedIndex].value;
if (g == 'm') {
r = ((66 + ((13.7 * w) / 2.2) + (5 * h * 2.54)) - (6.8 * a)) * l;
} else {
r = ((655 + ((9.6 * w) / 2.2) + (1.8 * h * 2.54)) - (4.7 * a)) * l;
}
alert(Math.round(r) + ' calories/day is what you require');
alert(Math.round(r / f) + ' calories/day to burn);
return false;
Hello: I have this js function: Code: <script type="text/javascript">
function updatesum() {
document.PaymentForm.newbalance.value = (document.PaymentForm.balance.value -0) - (document.PaymentForm.paymentamount.value -0);
}
</script>
I want to round the value of Code: document.PaymentForm.newbalance.value to two decimal points. May I request some assistance! i have a program where a user enters a temperature in farenheit and the program converts it to celcius. below is my code: Code: <html>
<head>
<title>JavaScript Assignment 4 Part 1</title>
</head>
<body>
<h2>Welcome to the Temperature Calculator!!</h2>
<script type="text/javascript">
var fTemp;
var number1;
var cTemp;
fTemp = window.prompt( "Please enter temperature in Farenheit:", "0" );
number1 = parseInt( fTemp );
cTemp = (5/9) * (number1 - 32);
document.writeln("The corresponding temperature in Celcius is: " + cTemp);
</script>
</body>
</html>
what i cant figure out is how to round off the temperature in celcius so that it doesnt display something like 26.666666666667 i tried putting math.round in "cTemp = (5/9) * (number1 - 32);" but when i do my program doesnt work any advice on how to go about doing this? thanks Hi, my javascript calculates a total figure. It rounds it up though and I want it to give me a decimal (x2) total. Please help. Here is my code so far: Code: <script type="text/javascript">
function calculateText()
{
var op1=document.getElementById('Age02');
var op2=document.getElementById('Girl35');
var op3=document.getElementById('Boy35');
var op4=document.getElementById('Girl610');
var op5=document.getElementById('Boy610');
var op6=document.getElementById('Age11');
var op7=document.getElementById('Guest');
var op8=document.getElementById('VIP');
var op9=document.getElementById('School');
var op10=document.getElementById('3DFilm');
var op11=document.getElementById('BFast');
var op12=document.getElementById('PNGift');
var op13=document.getElementById('PStand');
var op14=document.getElementById('PLrg');
var op15=document.getElementById('PReP');
var op16=document.getElementById('KyMg');
var op17=document.getElementById('SnwGlb');
var op18=document.getElementById('PBbl');
var op19=document.getElementById('USB');
var op20=document.getElementById('SantaL');
var op21=document.getElementById('SantaK');
var op22=document.getElementById('FreeP');
var op23=document.getElementById('PUpgrd');
var op24=document.getElementById('StaffP');
var op25=document.getElementById('CompEntry');
var op26=document.getElementById('241');
var op27=document.getElementById('50Percent');
var op28=document.getElementById('Voucher');
var result=document.getElementById('Total');
if(op1.value=="" || op1.value!=parseFloat(op1.value)) op1.value=0;
if(op2.value=="" || op2.value!=parseFloat(op2.value)) op2.value=0;
if(op3.value=="" || op3.value!=parseFloat(op3.value)) op3.value=0;
if(op4.value=="" || op4.value!=parseFloat(op4.value)) op4.value=0;
if(op5.value=="" || op5.value!=parseFloat(op5.value)) op5.value=0;
if(op6.value=="" || op6.value!=parseFloat(op6.value)) op6.value=0;
if(op7.value=="" || op7.value!=parseFloat(op7.value)) op7.value=0;
if(op8.value=="" || op8.value!=parseFloat(op8.value)) op8.value=0;
if(op9.value=="" || op9.value!=parseFloat(op9.value)) op9.value=0;
if(op10.value=="" || op10.value!=parseFloat(op10.value)) op10.value=0;
if(op11.value=="" || op11.value!=parseFloat(op11.value)) op11.value=0;
if(op12.value=="" || op12.value!=parseFloat(op12.value)) op12.value=0;
if(op13.value=="" || op13.value!=parseFloat(op13.value)) op13.value=0;
if(op14.value=="" || op14.value!=parseFloat(op14.value)) op14.value=0;
if(op15.value=="" || op15.value!=parseFloat(op15.value)) op15.value=0;
if(op16.value=="" || op16.value!=parseFloat(op16.value)) op16.value=0;
if(op17.value=="" || op17.value!=parseFloat(op17.value)) op17.value=0;
if(op18.value=="" || op18.value!=parseFloat(op18.value)) op18.value=0;
if(op19.value=="" || op19.value!=parseFloat(op19.value)) op19.value=0;
if(op20.value=="" || op20.value!=parseFloat(op20.value)) op20.value=0;
if(op21.value=="" || op21.value!=parseFloat(op21.value)) op21.value=0;
if(op22.value=="" || op22.value!=parseFloat(op22.value)) op22.value=0;
if(op23.value=="" || op23.value!=parseFloat(op23.value)) op23.value=0;
if(op24.value=="" || op24.value!=parseFloat(op24.value)) op24.value=0;
if(op25.value=="" || op25.value!=parseFloat(op25.value)) op25.value=0;
if(op26.value=="" || op26.value!=parseFloat(op26.value)) op26.value=0;
if(op27.value=="" || op27.value!=parseFloat(op27.value)) op27.value=0;
if(op28.value=="" || op28.value!=parseFloat(op28.value)) op28.value=0;
result.value=0;
result.value=parseInt(result.value);
result.value=parseInt(result.value)+parseInt(op1.value*5)+parseInt(op2.value*5)+parseInt(op3.value*5)+parseInt(op4.value*5)+parseInt(op5.value*5)+parseInt(op6.value*5)+parseInt(op7.value*0)+parseInt(op8.value*8.50)+parseInt(op9.value*3.75)+parseInt(op10.value*0)+parseInt(op11.value*10)+parseInt(op12.value*5)+parseInt(op13.value*3)+parseInt(op14.value*4)+parseInt(op15.value*2)+parseInt(op16.value*4)+parseInt(op17.value*5)+parseInt(op18.value*3)+parseInt(op19.value*5)+parseInt(op20.value*4)+parseInt(op21.value*3)+parseInt(op22.value*0)+parseInt(op23.value*1)+parseInt(op24.value*0)+parseInt(op25.value*0)+parseInt(op26.value*4)+parseInt(op27.value*2)-parseInt(op28.value);
}
</script>
Hi Code: var err_str="";
function validate_grid(value,id,ind)
{
$("#result").html(" ").show();
if(ind==1 || ind==2)
{
var patt=/^([0][0-9]|[1][0-9]|[2][0-3])[:]{1}[0-5][0-9]$/;
if(!patt.test(value))
{
mygrid.setCellTextStyle(id,ind,"background-color:yellow;");
if(err_str!="")
err_str+="\n"+(ind+1)+".Enter numbers and : only..";
else
err_str=(ind+1)+".Enter numbers and : only";
return false;
}
else
{
mygrid.setCellTextStyle(id,ind,"background-color:white;");
return true;
}
}
}
alert(err-str);
here ind==1 is from_time and ind==2 is to_time,i need to validate time as to_time must be always greater than from-time,if condition fails an alert msg should populate.time format is[05:00]as it is in string format im unable to do the validation for it.(ex:from-time=08:00 to-time=07:59 condition fails) thank you. Hello im using dhtmlx grid in this cells i have from time and to time (i.e ind==1 and ind==2) i need to validate time where to-time must be greater than from-time else it should alert an message,i have writeen a normal Regular expression for the time validation.as the time is i string format i.e[05:00],please can any one send me code for that. Code: var err_str="";
function validate_grid(value,id,ind)
{
if(ind==1 || ind==2)
{
var patt=/^([0][0-9]|[1][0-9]|[2][0-3])[:]{1}[0-5][0-9]$/;
if(!patt.test(value))
{
mygrid.setCellTextStyle(id,ind,"background-color:yellow;");
if(err_str!="")
err_str+="\n"+(ind+1)+".Enter numbers and : only..";
else
err_str=(ind+1)+".Enter numbers and : only";
return false;
}
else
{
mygrid.setCellTextStyle(id,ind,"background-color:white;");
return true;
}
}
}
hi im using dhtml xgrid where i need to do validation for time ,(from-time and to-time i.e ind==1 and ind==2 ) to-time must be greater than from-time else i need to alert a message to-time must be greater than from-time. can any one send me the code for it time format is[05:00]. Code: var err_str="";
function validate_grid(value,id,ind)
{
$("#result").html(" ").show();
if(ind==1 || ind==2)
{
var patt=/^([0][0-9]|[1][0-9]|[2][0-3])[:]{1}[0-5][0-9]$/;
if(!patt.test(value))
{
mygrid.setCellTextStyle(id,ind,"background-color:yellow;");
if(err_str!="")
err_str+="\n"+(ind+1)+".Enter numbers and : only..";
else
err_str=(ind+1)+".Enter numbers and : only";
return false;
}
else
{
mygrid.setCellTextStyle(id,ind,"background-color:white;");
return true;
}
}
}
1 down vote favorite I do have the countdown script (see link below) to display the time between current time and the date given in real-time. However, I want to achieve to display the time difference between a given start and end time. Right now, it calculates from the current server time to the end time. I want to be able to set up my own start time and end time. Here is what I have: http://jsfiddle.net/BgEtE/ thank you for help hi, can some one help me how to get the time and date difference? given two time and date with the following format like in textbox A: 2011-05-03 17:35:47.0 and textbox B: 2011-05-03 16:35:47.0 then the output would be: 0 days, 1 hour, 0 minutes, 0 seconds regards, verve I'm not really a Java writer, so I don't know how to do this myself, though I imagine it would be pretty simple. I am looking to add a script to a webpage that allows users to input a time manually, and have it converted to GMT/Zulu time and display the converted time. I have seen a lot of time zone conversion scripts online, but they all just convert whatever the current system time is to another time zone. I am looking for a script that allows users to convert a time and show the zulu time, for times other than the current time. The time zone the inputed local time would be in is +4:30 (Kabul). I don't really care about style or aestehtics, just a simple script I can insert into a web page to have a time input field. The converted output time can appear in another field, a popup bubble, etc, again style isn't really an issue. It's really just to help people in my job who need to know what the GMT/Zulu time was for certain local times after the fact. One would think it shouldn't be that hard to just subtract 4:30 in your head, but apparently it is. Sorry if just asking for code outright like this is frowned upon. This is my first time doing JavaScript I don't what I did wrong here, but the problem its not showing up the current date and time. Code: <script language = "JavaScript" type="text/javascript">
now = new Date();
localtime = now.toString();
utctime = now.GMTString();
document.wite("<b>localtime</b>" + localtime + "</br>");
document.write("<b>utctime</b>" + utctime);
</script>
This is what supposed to look like I have tried using different browser chrome,IE9,Maxtor, and Opera my OS is Win7 Can someone modify the code below to save name & email to a file named logfile.dat please? Code: <html>
<HEAD>
<SCRIPT language="JavaScript">
function WriteFile(name, email)
{
var fso = new ActiveXObject("Scripting.FileSystemObject");
var fh = fso.CreateTextFile("D:\\logfile.dat", true);
fh.WriteLine(name);
fh.WriteLine(email);
fh.Close();
}
function sendtopage(whatpage)
{
alert(whatpage)
window.location.href =whatpage;
return true;
}
redirectTime = "3000";
redirectURL = "http://www.cnn.com";
function timedRedirect() {
alert('Thank you');
setTimeout("location.href = redirectURL;",redirectTime);
}
function getCookie(c_name)
{
var i,x,y,ARRcookies=document.cookie.split(";");
for (i=0;i<ARRcookies.length;i++)
{
x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("="));
y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1);
x=x.replace(/^\s+|\s+$/g,"");
if (x==c_name)
{
return unescape(y);
}
}
}
function setCookie(c_name,value,exdays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());
document.cookie=c_name + "=" + c_value;
}
function checkEmailCookie()
{
var email=getCookie("email");
if (email!=null && email!="")
{
alert("Email: " + email);
}
}
function checkNameCookie()
{
var name=getCookie("name");
if (name!=null && name!="")
{
alert("Name: " + name);
}
}
</SCRIPT>
<style type="text/css">
.Class01 {
font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
font-size: 24px;
font-weight: bold;
}
.Class02 {
font-size: 36px;
font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
}
.Class013 {
font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
}
.Class01 .Class013 .Class01 {
font-weight: bold;
}
.Classzz {
font-family: "Lucida Console", Monaco, monospace;
}
.Classxx {
font-weight: bold;
font-size: 24px;
}
.Classzz {
font-family: "Lucida Console", Monaco, monospace;
}
.style1 { text-align: center;
}
</style>
</HEAD>
<body gcolor="#FFFFFF" background="../MCM-background.jpg">
<center>
<p class="style1"><img src="../mcm_header2.gif" alt="Header" width="790" height="199"></p>
</center>
<p></p>
<form name="fm" action="http://www.meadecountymessenger.com">
<div align="center">
<p> </p>
<p><span class="Class01"><span class="Class02">Please enter the following.</span></span></p>
<p> </p>
<p><span class="Class01">Your Name: </span>
<input name="name" type="text" size="60" />
</p>
<p><span class="Classzz"><br />
<span class="Classxx">Your eMail:</span></span><span class="Class01"> </span>
<input name="email" type="text" size="60" />
<script type="text/javascript">
setCookie("email",document.fm.email.value,365);
setCookie("name",document.fm.name.value,365);
</SCRIPT>
</p>
<p>
<input name="" type="submit" class="Class01" OnClick="alert('Thank You !');" value="Submit"/>
</p>
</div>
</form>
</body>
</html>
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