|
JavaScript - Variable Problem
Hi guys,
Im a bit confused about variables.. and i ran into a problem.. The problem is: I have e php file. with a php variable called lets say phpvar, like this: PHP Code: $phpvar="whatever"; Then i have a html document whit my javascript's in it.. where i need that variable like this: Code: upload_url: '"addons/uploader/upload-file.php?dir="(PHPVARHERE), Now how the hell do i do that ?? can anyone please show me ?? i did figure out how to get $phpvar into a javascript var, in the first php file, but getting it over to the javascript in a different file seems to be a bit of a problem to me.. Thanks, Steffan Similar TutorialsHello everybody I have a problem with Java Script damned I want to add the values of several variables in one variable and then use this variable, which contains the values of variables You can see the following example HTML Code PHP Code: <input type="text" name="txt1" /> <br/>age <input type="text" name="txt2" /> <br/><br/> <input type="button" name="submits" value="send"/> Javascript Code PHP Code: field = document.getElementsByName('txt1')[0]; field2 = document.getElementsByName('txt2')[0]; submit = document.getElementsByName('submits')[0]; data = 'data=' + field.value + '&data2=' + field2.value + '&submits=' + submit.value; document.getElementsByName('submits')[0].onclick = function(){ alert(data); } After executing this code I find that the variables are not displayed values As in the following picture I want to know what the cause of this problem ? So I just began learning HTML 5, and I'm having some issues with variables not being accessed properly. PHP Code: var mouseX = 0; var mouseY = 0; function mousemove(event) { var canvas = document.getElementById('apples'), mouseX = event.pageX - canvas.offsetLeft; mouseY = event.pageY - canvas.offsetTop; } function mousedown(event) { if(judge != playerNumber && started && mouseY >= 500-800/7*1.54){ var i = Math.floor(mouseX/800*7); alert(mouseX); } } All of this is in the <head>. I define the listener he PHP Code: var canvas = document.getElementById("apples"); canvas.addEventListener('mousemove', mousemove, false); canvas.addEventListener('mousedown', mousedown, false); For some odd reason, mouseX stays at zero outside of mousemove. Inside, it updates properly. It appears to be acting as a local variable. However, mouseY acts properly in both mousemove and mousedown. It retains its value. I've been testing this in Chrome v12.0.742.100, on Windows 7. It does the exact same thing in Firefox. Those are the only parts of the code that reference mouseX, mouseY or the two event listeners. Any ideas as to how to fix this? Hi, I am having 1 JS file 'common.js', which has 2 functions: func1(); func2(); and 2 PHP files: file1 and file2. I am calling func1() from file1 (<html><body onload="javascript:func1()"...) and initializing some global variables in func1. Then i am calling func2() from file2 and reading those variables, but those i am getting undefined. Is it because the variables were initialized in a function which was called by some file, that i am not able to access in a function called by another file, like a scope problem? I thought since both the functions are in same file, the global variables in that file are accessible to all functions in that file. Please help! Thanks! Hi guys, I have a small script that creates elements with createElement(); and assigns an id to it with a variable concatenated to the id, but when the function is ran again it seems like the previous div that was generated doesn't retain the previous id with the concatenated variable. This is my code: Code: <script>
function effect(){
$('#btn-slide' + defectsnumber).click(function() {
$('#table2' + defectsnumber).animate({
height: 'toggle'
}, 2000);
});
}
</script>
<script type='text/javascript' language='JavaScript'>
defectsnumber = 0;
function generatedefects()
{
if (defectsnumber > 9) {
alert('You can not enter more than 10 defect percentages!');
} else {
if (defectsnumber == 0)
{
testdiv2 = document.createElement('div');
testdiv2.id = 'testdiv';
}
defectsnumber = defectsnumber + 1;
testingdiv = document.createElement('div');
testingdiv.id='btn-slide' + defectsnumber;
testingdiv.innerText = 'Click Me ' + defectsnumber;
divTag2 = document.createElement('div');
divTag2.id='table2' + defectsnumber;
divTag2.style.cssText = 'background: white; border: 1px solid black; width: 300px; height: 300px; margin-left: 34px; margin-top: 5px; float: left; display: yes;';
divTag2.appendChild(testingdiv);
testdiv2.appendChild(divTag2);
document.body.appendChild(testdiv2);
}
effect();
}
</script>
Does anyone know why that is happening? Hello, I am trying add some animation effects to a navigation button and am having some problems with my code. I am using setInterval(); and the problem came with trying to clear it using clearInterval(); if i have this code then it seems to clear it fine: Code:
var i = 21;
function w(){
document.getElementById("homebtntop").style.height = i + "px";
i--;
}
function c(){
if(i<=6){
window.clearInterval(t);
}
}
function r(){
t = self.setInterval("w()",15);
}
function slideIn(){
t = self.setInterval("w()",15);
clearInterval(t);
}
but if i then try to call it from inside a function c(); it doesn't work: Code: var i = 21;
function w(){
document.getElementById("homebtntop").style.height = i + "px";
i--;
}
function c(){
if(i<=6){
window.clearInterval(t);
}
}
function r(){
t = self.setInterval("w()",15);
}
function slideIn(){
t = self.setInterval("w()",15);
clearInterval(t);
}
Any ideas? i am sorry if my code makes no ssense or is badly formatted, this is my first time with javasript. Thank you. I have two versions of this document. The first version uses only JavaScript and the standard PROMPT(). It works very well, but I would like to insert the name prompt into the page using the input command. For some reason the variable loaded in the HTML statement doesn't get passed to the JavaScript. Any ideas would be appreciated! This is only a small test page. Sorry I don't know about the [code] tag... <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="generator" content="CoffeeCup HTML Editor (www.coffeecup.com)"> <meta name="created" content="Sat, 10 Sep 2011 19:40:31 GMT"> <meta name="description" content=""> <meta name="keywords" content=""> <title>Enter golfers name</title> <!--[if IE]> <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <SCRIPT LANGUAGE="JavaScript" type="text/javascript" src="script1.js"></SCRIPT> <SCRIPT LANGUAGE="JavaScript"> function GetPage(){ document.write("OK") var lab = ""; var result = fullname.toUpperCase(); var word=result.split(" "); fname = word[0] lname = word[1] alpha = lname.slice(0,1); lab = fname.concat("_") lab = lab.concat(lname) if(word[2]){ ext = word[2] lab = lab.concat("_") lab = lab.concat(ext) } var intro = "./Stats_"; page = intro.concat(alpha); page = page.concat("_golfers.html#"); page = page.concat(lab) document.write(page) <!-- window.location.pathname = page } </script> </head> <body> <center> <form action="form_action.asp" method="get"> You can enter the golfersname or select him from the above list.<br><br> <input type="text" name="fullname" /> <button type="submit" onclick="GetPage()">GO</button> </form> </center> <BR><BR><BR> This is the end </body> </html> Hi, I am doing a Validation for Form "Text input". If the user leaves the input empty, a function is starting to run. If the field is bigger than 1 - so it doesn't get into the function. The problem is: The first time, the user left the input empty, function ran, and I got the alert - that's OK. Second time, The user added 10 in the AGE input - And again he gets the Alert - But he should not. Note: Age input value, returns from a different function (calc) to a var called: result. this is the code: Code: $(document).ready(function(){
$('#btn_send').click(function(){
//var result gets the value from another function of input "Age" value. -> return thisform.Age.value
var result = calc(document.getElementById("campaignform"));
if (result<1)
{
$("#campaignform").submit(function(event) {
event.preventDefault(); alert ("prevent default");
});
}
else{
return true;
};
});
});
so if you try the second time to click on Submit, then you get into $('#btn_send').click(function() and eventhough you added for example 67 in the AGE (return as result) input, you get into the IF statement which is: if (result<1) I'm pretty new to developing, so I hop you will understand me. Sorry if I have mistakes. Can you advice what could be a better TITLE for this question? thanks in advance, Shai Hi, I have a programing problem that have been around for ages. I have search on google using several expressions and words and after hours of digging i'm still unable to do it. I would like to get a value from a HTML page hosted remotely with an inconstant value. Then define this value and name as a javascript variable and apply or show in my page. Thanks for all the help P.S. Is there any way to make a domain lookup in javascript? I mean a user enters a domain and the script converts to an ip and shows to the user. If not thanks, probably it can only be done in the server side... Hello I have a php page in which I declared a js variable... right at the top of the page... <script type="text/javascript"> var tester = 0; </script> Later in the page I test this variable... <script type="text/javascript"> if (tester==1){ do some stuff!! } </script> But I keep getting an error variable _tester undefined Am I missing something obvious... I am new to js... but this seems really straightforward Hi! I have a javascript in the head of the document which has a variable named "ref2" ... ref2 is already working as I can see its value working in another function. I need to send this variable as the value of a hidden field in the form which is in the body of the document. This is my JavaScript Code: Code: function WriteContactFormStatement1 () {
var ContactFormValue = ref2;
document.write('<input type="hidden" name="UReferrersName" value="' + ContactFormValue + '" />');
}
var WriteContactFormStatement = WriteContactFormStatement1 ();
And at the end of my form, before the submit button, I have the following code: Code: <!-- START -- Javascript to print the statement for UReferrersName --> <script language="JavaScript" type="text/JavaScript"> //WriteContactFormStatement(); document.write (WriteContactFormStatement); </script> <!-- End -- Javascript to print the statement for UReferrersName --> When I execute the form, it doesn't work the way it should, plus, gives me a word "undefined" next to the "Submit" button ..... Please help !... - Xeirus. I don't know how I should do ? Quote: <html> <head> <script type="text/javascript"> function add(a,b){ y=a+b return y } var aaa = add(one,two) //one needs to get somehow get the value of yil, in this case 10 var one = function reas(){i=10;if(i<10){yil = 15}; else{yil = 10; yil = one;}; var two = 20; document.write(y) </script> </head> </html> also why doesn't this work? Quote: <html> <head> <script type="text/javascript"> function adder(a,b){ var k=a+b; return k } var hes=adder(5,kol); kol=40; alert(hes); </script> </head> </html> you cannot have variables in callback functions? Hello I have a piece of javascrip that refreshes the page: ---------- Code: <script type="text/javascript">
<!-- Begin
function reFresh() {
location.reload(true)
}
/* Set the number below to the amount of delay, in milliseconds,
you want between page reloads: 1 minute = 60000 milliseconds.
2 minutes = 120000 milliseconds 5 minutes = 300000 milliseconds*/
window.setInterval("reFresh()",20000);
// End -->
</script>
-------- I am new to javascript and wanted to use an html options menu in order to be able to choose the refresh interval: Code: <SELECT NAME="refreshtime"> <OPTION VALUE="60000">1 min</option> <OPTION VALUE="120000">2 min</option> <OPTION VALUE="180000">3 min</option> <OPTION VALUE="240000">4 min</option> </SELECT> I know that I have to pass a variable to the function. I have tried several variations but none have worked. I have mostly received a "done with errors" warning. Any help would be appreciated. Thanks Zam This might be a stupid question, but is there any memory usage difference between var variable1, variable2; and var variable1; var variable2;? I'm learning how to use faster code hence the question.
If I manually write out "2/22/2012 4:00 PM" in TargetDate, I get the correct result for what I want to do (a countdown). But I want the countdown to always be the current day at 4pm. So I tried the code below thats commented, but it is not working. New to javascript, still reading the books, just hoping for some guidance on this. Code: Next Update: <script language="JavaScript"> var currentTime = new Date() var month = currentTime.getMonth() + 1 var day = currentTime.getDate() var year = currentTime.getFullYear() TargetDate = "2/22/2012 4:00 PM"; //TargetDate = "document.write(month + "/" + day + "/" + year) + 4:00PM"; BackColor = "white"; ForeColor = "red"; CountActive = true; CountStepper = -1; LeadingZero = true; DisplayFormat = "%%H%% H, %%M%% M, %%S%% S"; FinishMessage = "Forecasts posted"; </script> <script language="JavaScript" src="countdown.js"></script> Can anyone tell me of how to take or assign a javascript variable into php.
Hi, I want to write some javascript code that uses arrays, I have a list of arrays named array1, array2, array3 etc. I want to perform a function on each of these arrays. I wanted to have a variable for the number after array so this is what I have: <code> var array1 = new Array ("1","2","3","4","5"); var array2 = new Array ("5","6","7","8","9"); for (var i=1; i<=2;i++){ document.writeln(("array"+i)[1]); } </code> the problem is it gives me the letters in the string array instead of the array values. How do I get javascript to treat ("array"+i) as array1? I have these lines: Quote: var ddArray=['holidayTypes','groupType','group_status']; for(var x in ddArray) eval(ddArray[x]=0); alert(holidayTypes); alert(groupTypes); alert(group_status); But it only alerts something like: Quote: object HTMLSelectElement Please help, thank you. Hi all, I need to get the name of a Javascript variable. For example, it would work like this: Code: var test = document.getElementById('whatever');
var name = getName(test);
alert('The variable name is ' + name);
Running this code would result in an alert box that says "The variable name is test". What I need to know is how to implement the "getName()" function. Thanks! -- Roger I have to create a code that will prompt the user to enter a hypothetical width and length of a pool, show the area of that, then get prompt them to enter a hypothetical charge of a pool cleaning company, and get the webpage to tell how much the hypothetical bill would be. Here's the code I'm using, but it won't work for me, any suggestions would be appreciated! <script type="text/javascript"> var width= parseFloat ( window.prompt ("What is the width of the pool?")) var length= parseFloat ( window.prompt ("Length of pool")) document.write ( "The area is:"+width * length) var charge= parseFloat ( window.promt ("Charge of pool company")) var area= parseFloat ( width * length ) document.write ( "The bill would be:"area * charge) </script> I would like to have the page load a different images depending on SCRIPT variables. Something like <img src= pictures[n] etc. Where pictures is something like <SCRIPT language="JavaScript" var pictures=[Smilyface.gif,Sadface.gif,mountain.jpg - - - etc]; |
|||||||