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JavaScript - Multiple Variables Addition Not Updating Properly
Hello.
Sorry the code example might be a little long but it's repetitive and should be easy to understand. http://jsbin.com/eyeke4/13/edit My real code has 12 examples and not 3 but for the sake of this I had to shorten it as much as possible. When you go on there and preview it, you Select a level, then select a hero, then select 3 items and hit click me. This will give you a result of statistics. Now my problem is all the way on the right you will see all 3 values of AP are added together. In the last column alone. The thing about it is if you change item #1 and item #2 it does not update properly..to update it you MUST change the last item each time, which is inconvenient. The way it works is : daap1 = iap1[isi1]; daap2 = iap2[isi2]; daap3 = iap3[isi3]; totalap = (daap1 + daap2 + daap3); $(".tap").html(totalap); Pretty much like this in a nutshell. if I were to put $(".tap").html((iap1[isi1] + iap2[isi2] + iap3[isi3])); it works perfectly fine. But I need to use the variable totalap in formulas. How do I make it so things always update properly without the user having to do inconvenient things like always having to reselect the last dropdown? In my main code I have 12 total, 6 and 6 split apart, for me to currently get accurate info I must reselect the 6th and 12th item every single time. Any help on how I could achieve this would be very much appreciated, do I need a database or something? I don't mind what I need as long as it would work perfectly. Thanks in advance. Similar TutorialsI made a php page with multiple forms with javascript code in it. The javascript makes an input field for the date. The problem is that the script interfers between other scripts in the other forms and i get wrong orderdate. Code: <form action='dataadd.php' name='$id'>";
$datestime=time();
echo "<input type=hidden name=dateid value='$id'>";
echo "<input type=hidden name=datestime value='$datestime'>";?>
<script type="text/javascript">
DateInput('orderdate', true, 'yyyy-mm-dd')</script>....
I am creating a quote calculator as a mobile app using the JQuery Mobile plugin in Dreamweaver CS5.5. This supports HTML5 & Javascript. I have included a drop down list in which the user selects a specific Annual Volume. I have 2 different calculations that need to be done based on the users selection. Different calculations meaning that I need 2 different number values assigned to the option. For Example: Calculation #1 (I'm calculating what the Run Quantity is based on what the user selects as the Annual Volume. If user selects an Annual Volume of 150,000 then the calculated result for Run Quantity needs to be 3500) HTML for this scenario: Code: <li data-role="fieldcontain">
<p><span class="ui-listview-inset">Annual Volume:</label>
<select name="annualvolume" id="annualvolume">
onChange="Calculate();">
<option value="1000">10,000</option>
<option value="2000">30,000</option>
<option value="3500">150,000</option>
<option value="6000">300,000</option>
<option value="10000">500,000</option>
<option value="20000">1,000,000</option>
</select>
</p>
</li>
Calculation #2 (within the same form as the above calculation, I also need to calculate what the Annual Sales will be. The math to calculate the Annual Sales is to multiply the Final Piece Price (which is another calculation within this form) with Annual Volume. However with this Calculation # 2 I need the value to be 150,000 when user selects 150,000 and NOT 3500 as it was before. I've tried tweaking the HTML in following manner to assign 2 values within the same drop down, but it didn't work correctly. Code: <option value="3500" amount="150000">150,000</option> My javascript is as follows (please note that I deleted all the result fields except for the 3 that reference my described calculations above. My actual calculator has over 20 results all based on the user's inputs. This is why there are so many variables listed in my javascript - they are for the other results) Code: <SCRIPT LANGUAGE="JavaScript">
function CalculateSum(Atext, Btext, materialtype, presstype, Etext, Ftext, annualvolume, annualvolume2,Htext, Itext, form)
{
//INPUTS
var A = parseFloat (Atext);
var B = parseFloat (Btext);
var C = document.getElementById('materialtype').value;
var D = document.getElementById('presstype').value;
var E = parseFloat (Etext);
var F = parseFloat (Ftext);
var G = document.getElementById('annualvolume').value;
var GA = document.getElementById('annualvolume').amount;
var H = parseFloat (Htext);
var I = parseFloat (Itext);
//RESULTS
form.RunQuantity.value = G
form.FinalPiecePrice.value = (((C*A) + F) + ((D/G) + E) + (((C*A) + F) + ((D/G) + E )) * (H *.01) + (((C*A) + F) + ((D/G) + E ) + (((C*A) + F) + ((D/G) + E )) * (H *.01)) * (I *.01))
form.AnnualSales.value = (form.FinalPiecePrice.value * GA)
}
</script>
Currently I am simply having the user enter the annual volume twice so I can do the 2 calculations, but this is really clunky and not ideal. I'm fairly new to Javascript but have learned a lot from reading other posts by people like you. This is the first thing I haven't been able to figure out on my own and any help would be greatly appreciated. Is it possible to pull multiple variables from a single dropdown menu selection? example: I have this: Code: function material_choices_menu() /* Provides Specific Gravity for various materials */
{
var data = "Material <select name='material'>";
data += "<option value='.926'>CYCOLAC MG47 (ABS)<\/option>";
data += "<option value='1.050'>CYCOLAC MG47MD (ABS)<\/option>";
data += "<option value='.958'>CYCOLAC T (ABS)<\/option>";
data += "<\/select>";
document.write(data);
}
I'd like to have multiple option values: Code: function material_choices_menu() /* Provides Specific Gravity for various materials */
{
var data = "Material <select name='material'>";
data += "<option value1='.926', option value2='.005-.008'>CYCOLAC MG47 (ABS)<\/option>";
data += "<option value1='1.050', option value2='.005-.008'>CYCOLAC MG47MD (ABS)<\/option>";
data += "<option value1='.958', option value2='.005-.008'>CYCOLAC T (ABS)<\/option>";
data += "<\/select>";
document.write(data);
}
I plan to use the first value in some math formulas to determine weights and the rest of the values will just be shown as data for the user and/or possibly a link to the datasheet for the material selected. Is this possible or am I reaching here? What I have to do is, "Ask for number1, ask for number2 and show them added, subtracted and multiplied." Here is my code, what's wrong? <script type="text/javascript"> var number1= parseFloat ( window.prompt ("What is the first number?","")) || 0; var number2= parseFloat ( window.prompt ("What is the second number?","")) || 0; var addition= num1*1 + num2*1; var subtraction= num1*1 - num2*1; var multiplication= num1*1 * num2*1; document.write (Addition is: " num1+" + "+num2+"="+ addition); document.write (subtraction is: " num1" + "+num2+"="+ subtraction); document.write (muliplication is: " num1" + "+num2+"="+ multiplication); </script> I have been working on a few budget scripts that I can access from the web in using HTML. My problem is that when variable values change I need to change these values in all of the HTML files on the server. I know that there is a way to declare global variables in a single file and use those values in another file but I have not been able to find any information that tells me exactly how to do this. I have tried to put it together on my own using what little informaiton I have been able to find but have not been able to get this to work. Is there a more detailed referance that I can find somewhere or does anyone know what steps I need to take to make this happen?
How would I clean up this code? it looks so ugly, would I put it in a for loop and make it loop through and set the rand2, rand3, rand4 = place... there so there is a lot less lines of code(which is what I want) I need a cleaner way to do this, so it isn't so much space. Can someone help? there needs to be different variables because I need the random to be different for each, so rand2 = different random value than rand3. var place = [74,111,148,185,222,259,296,333,370]; var random = [rand,rand2,rand3,rand4,rand5,rand6,rand7,rand8,rand9]; var rand = place[Math.floor(Math.random()*place.length)]; var rand2 = place[Math.floor(Math.random()*place.length)]; var rand3 = place[Math.floor(Math.random()*place.length)]; var rand4 = place[Math.floor(Math.random()*place.length)]; var rand5 = place[Math.floor(Math.random()*place.length)]; var rand6 = place[Math.floor(Math.random()*place.length)]; var rand7 = place[Math.floor(Math.random()*place.length)]; var rand8 = place[Math.floor(Math.random()*place.length)]; var rand9 = place[Math.floor(Math.random()*place.length)]; var newrand = place[Math.floor(Math.random()*place.length)]; var newrand1 = place[Math.floor(Math.random()*place.length)]; var newrand2 = place[Math.floor(Math.random()*place.length)]; var newrand3 = place[Math.floor(Math.random()*place.length)]; var newrand4 = place[Math.floor(Math.random()*place.length)]; var newrand5 = place[Math.floor(Math.random()*place.length)]; var newrand6 = place[Math.floor(Math.random()*place.length)]; var newrand7 = place[Math.floor(Math.random()*place.length)]; var newrand8 = place[Math.floor(Math.random()*place.length)]; var newrand9 = place[Math.floor(Math.random()*place.length)]; var old = place[Math.floor(Math.random()*place.length)]; var old1 = place[Math.floor(Math.random()*place.length)]; var old2 = place[Math.floor(Math.random()*place.length)]; var old3 = place[Math.floor(Math.random()*place.length)]; var old4 = place[Math.floor(Math.random()*place.length)]; var old5 = place[Math.floor(Math.random()*place.length)]; var old6 = place[Math.floor(Math.random()*place.length)]; var old7 = place[Math.floor(Math.random()*place.length)]; var old8 = place[Math.floor(Math.random()*place.length)]; var old9 = place[Math.floor(Math.random()*place.length)]; First off I didn't know whether to post this here or in the PHP section since it deals with both, but mostly JS. I have a PHP scraper that scrapes the job title, company name and location from a website and stores them in separate arrays. These values are then extracted out one at a time from the array and stored into a string, that is then passed to a Google Maps API. I can make this successfully happen once, the thing is I need to do it multiple times. I have an idea on what I should do but don't really know how to implement it (correctly). The idea I had was to create a function in the JavaScript section that accepts three values from PHP. This function would be called in my PHP for loop that extracts the values from the array into a string. The thing that confuses me is that the Map function is called via <body onLoad="initialize()">. Here's the link to my code Hopefully the title isn't too confusing, I shall explain... I'm a basic PHP/javascript developer and I need to build a series of forms where info is passed from page to page and there will be a need to skip to different sequences of pages depending upon answers given. I have distilled this into a small example (try.php) where I can set my page destination using javascript but I'd like to be able to set a session variable to store the form data to reuse it on other pages. Because I haven't used a form action then the result doesn't get stored. This example should make it clearer... Here is a simple form, I send the visitor to either page 1 or page 2 depending on their radio button choice: Code: <script type="text/javascript">
function OnSubmitForm()
{
if(document.myform.destination[0].checked == true)
{
document.myform.action ="pg1.php";
}
else
if(document.myform.destination[1].checked == true)
{
document.myform.action ="pg2.php";
}
return true;
}
</script>
<form name="myform" onsubmit="return OnSubmitForm();">
name: <input type="text" name="name"><br>
email: <input type="text" name="email"><br>
<input type="radio" name="destination" value="1" checked>go to page 1<br>
<input type="radio" name="destination" value="2">go to page 2
<p>
<input type="submit" name="submit" value="go">
</p>
</form>
This works fine inasmuch as it takes the visitor to the correct page, however I'd like to store the name entered as a session variable and reuse it on page 1 (or page 2). page1.php looks like this (and page 2 is very similar): Code: <?php
session_start();
// debug - turn on error reporting
error_reporting(E_ALL | E_NOTICE);
ini_set('display_errors', '1');
//Store our posted values in a session variable
if (isset ($_POST['name'])) {
$_SESSION['name'] = $_POST['name'];
}
else {
$_SESSION['name'] = null;
}
echo ("Session variable is set to: ".$_SESSION['name']);
?>
<h1>welcome to page 1</h1>
I'm sure that pg1.php would work if I had used a form action but I need the ability to send the visitor to different pages on form submission Is it possible to write the name to a session variable in try.php (I guess using javascript/ajax)? Thanks for any hints and examples Nigel Dear Experts I have following codes, it works fine to sum. but when I enter these values 2100.49+100.20 then it says 2,200.6,899,999,999,996 insted of 2,200.69. How to overcome this problem. Please help Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="language" content="english">
<meta http-equiv="Content-Style-Type" content="text/css">
<title>Numeric Textbox Sample</title>
<style type="text/css">
#box1 {width:200px;height:170px;border:1px solid green;background:#e3eeff;padding-top:20px;}
.button {width:100px;margin-top:0px;}
body {
margin:0;
margin-top:100px;
}
</style>
<script language="javascript">
function validate(evt)
{
var theEvent = evt || window.event;
var key = theEvent.keyCode || theEvent.which;
var backslsh = key;
var chck = String.fromCharCode( key );
var regex = /[0-9]|\./;
if( !regex.test(chck) ) {
theEvent.returnValue = false;
if(theEvent.preventDefault) theEvent.preventDefault();
}
}
function addCommas(nStr)
{
nStr += '';
var x = nStr.split('.');
var x1 = x[0];
var x2 = x.length > 1 ? '.' + x[1] : '.00';
var rgx = /(\d+)(\d{3})/;
while (rgx.test(x1)) {
x1 = x1.replace(rgx, '$1' + ',' + '$2')
}
return x1 + x2;
}
function fncSum2()
{
var amount1=form2.text1.value;
var amount2=form2.text2.value;
var a = amount1.replace(/[^0-9\.]/g,"");
var b = amount2.replace(/[^0-9\.]/g,"");
var nStr = (Number(a) + Number(b)).toString();
var rgx = /(\d+)(\d{3})/;
while (rgx.test(nStr)) {
nStr = nStr.replace(rgx, '$1,$2');
}
//nStr = "$" + nStr; // if $ prefix required
if (nStr.indexOf('.') == -1) { // if whole number add .00
nStr = nStr + ".00"
}
nStr = nStr.replace(/(\.\d)$/,"$10"); // if only one DP add another 0
return nStr
}
</script>
</head>
<body onload="form2.text1.focus()" >
<center>
<p>Enter 2100.49 in Amount</p>
<p>Enter 100.20 in Tax</p>
<p> and press + button<br>
It shows 2,200.6,899,999,999,996<br>
but I need 2,200.69</p>
</p>
<div id="box1">
<form name=form2>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr><td>Amount</td>
<td><input type=text name=text1 size=15 value="" onkeypress='validate(event)' onfocus="this.select
()" onblur="form2.text1.value=addCommas(form2.text1.value)" > </td></tr>
<tr><td>Tax</td> <td><input type=text name=text2 size=15 value="" onkeypress='validate(event)'
onblur="form2.text2.value=addCommas(form2.text2.value)"></td></tr>
<tr><td>Result</td><td><input type=text name=text3 size=15 value="" disabled></td></tr>
</table>
<hr>
<input class="button" type=button name=command1 value="+" onclick="form2.text3.value=fncSum2()"><br>
<input class="button" type=button name=command8 value="Focus" onclick="form2.text1.select
()";"form2.text1.focus()"><br>
<input class="button" type=reset name=command9 value="Reset">
</form>
</div>
</center>
</body>
</html>
Hi, I'm just learning JS by going through a book, while trying one of the examples in the book I ran into a problem with " + " operator. It think it's best I show by example (don't worry it's a fairly short script): Script Code: /* This is an attempt to do some math with javascript */
var a;
var b;
var c;
a = prompt("Pick your favorite number");
b = prompt("Pick your second favorite number");
c = a + b
document.write("a = " + a + ", b = " + b + ", c = " + c + "<br />");
document.write("<br />a + b = " + c + "<br />");
c += 6
document.write("<br />c + 6 = " + c + "<br />");
c -= 5
document.write("<br />c - 5 = " + c + "<br />");
c *= 3
document.write("<br />c * 3 =" + c + "<br />");
c /= 2
document.write("<br />c / 2 = " + c + "<br />");
c %= 7
document.write("<br />c % 7 = " + c + "<br />");
if (c > 0) {
document.write("<br /> Wrong!");
}
else {
document.write("<br /> You, I like")
}
Output Quote: a = 3, b = 4, c = 34 a + b = 34 c + 6 = 346 c - 5 = 341 c * 3 =1023 c / 2 = 511.5 c % 7 = 0.5 Wrong! As you can see the script doesn't execute the mathematical operation for addition. It instead strings it together. What am I doing wrong? Code: var purchasePrice = window.prompt("Please enter the purchase price:", 0);
function calculateTotalCost () {
if (purchasePrice <= 25) {
purchasePrice = purchasePrice + 1.50;
}
else {
purchasePrice = purchasePrice + (purchasePrice * 0.10);
}
window.alert("Your total price is $ " + purchasePrice);
}
I am still getting the same error, concatenation instead of addition, i can't figure out why. (i.e input 50, result 505 instead of 55.) hat i'm trying to achieve is to add two numbers using do while loop. below is the code however result wont show up. i cant seem to determine the error. help me pls. Quote: <script = "text/javascript"> function myanswer(x,y){ x=parseInt(x); y=parseInt(y); i=1; sum=0; do { sum=x+i; i++; } while(i<y) document.myform.asnwer.value=sum; } </script> <form name='myform'> Enter First number:<input type='text' name='x'></br> Enter Second number:<input type='text' name'y'></br> Result:<input type='text' name='answer'></br> <input type='button' value='Click on Me!' onclick="myanswer(myform.x.value,myform.y.value);"</br> </form> Ok, so I have 4 textboxes with ids payment, payment1, payment2, payment3 and with each box is a submit button, named submt1-4 I need to know how I can add all of the values into one textbox named total. so when submit1 is clicked, it will add payment to the total, then when submit2 is clicked, it will add payment1 to the value, etc. But, each text box could be used more than once, so payment could be used 8 times, and each of the 8 times, it needs to add the proper value to the total. how would I do something like this? So what I know about JS, you could write on a postage stamp, but I want t6o know if this is possible: On Page A: The user fills out a form, stating how many of each time of item they want, and the clicks submit, which mails the form to me (GenericPHP Mailer), and is rederected to page B. (That I can do) On Page B: The value of the items in the form on Page A is calculated, then a link is generated with a random order number, and the value of the order as link parameters. Can I do this? and how? I need help adding an additional function to some existing java script code I already have. In addition to the functions already on this js, I want make it so the banner displays one of the images randomly on each new page load. I have an external js file that this page also links too. Not sure if I need to post that also. I was hoping to just add to this code. Any help is greatly appreciated <script type="text/javascript" src="js/homepage-banners/simplegallery.js"> </script> <script type="text/javascript"> var mygallery=new simpleGallery({ wrapperid: "simplegallery1", dimensions: [250, 180], imagearray: [ ["img/headers/automotive.jpg", "http://www.visionsystem.com/applications/automotive_metal.php", "", ""], ["img/headers/electrical.jpg", "http://www.visionsystem.com/applications/electronics.php", "", ""], ["img/headers/food-packaging.jpg", "http://www.visionsystem.com/applications/food_pharmaceutical.php", "", ""], ["img/headers/medical-pharmaceutical.jpg", "http://www.visionsystem.com/applications/food_pharmaceutical.php", "", ""], ["img/headers/semiconductor.jpg", "http://www.visionsystem.com/applications/electronics.php", "", ""], ["img/headers/automation.jpg", "http://www.visionsystem.com/applications/food_pharmaceutical.php", "", ""] ], autoplay: [false, 2500, 2], persist: false, fadeduration: 500, oninit:function(){ }, onslide:function(curslide, i){ } }) </script> I can't seem to figure out how to accomplish this. In my website, I would like the user to input text into a single or multiple textbox(es) and then have the contents of the textbox(es) stored to either a variable or an array. Then I would like to have that variable/array compared to other arrays. Basically, the user is searching for items in a database. The user can search for as many or as little items as they want. Then the item(s) will be compared to multiple arrays to find out if what the user wants is in the database. So for example, let's say the user is searching for recipes that have all or part of these ingredients: chicken, broccoli, lemon, honey. So, there would have been a total of 4 textboxes...one for each ingredient. These ingredients are stored to an array..lets call it ingredient(). In the database of recipes, each recipe has its own array which includes the ingredients needed to make the recipe, we'll call them tag1(), tag2(), and tag3(). Now, I want the array, ingredient(), to be compared to each of the "tag" arrays to see if any of the "tag" arrays include exactly match the ingredient() tag in part or in whole. Is this possible? Hi, I hope someone can help me. I'll be honest and say I don't know much about javascript, but am fairly comfortable in html. I am building a website that will have multiple image swaps on multiple pages. I am building this in wordpress, and I'm guessing that means my approach will be different than if I wasn't using wordpress. Here's how one page would work: There are 10 images shown. 1,2,3,4,5,6,7,8,9,10. When number 1 is clicked on, I want a new image - 1a. When 2 is clicked on, 2a. So there are 20 different images in all on a given page. Also, I want the user to be able to click on the image again to restore the original image. I would prefer onclick to onmouseover. There will be literally dozens of pages like this on the site, managed by wordpress, so hundreds of images to swap. Basically the first image is a question - the second image is the answer. Is this possible? Hi, I am creating a web page which automatically updates one image every 5 seconds. I use ajax to fetch a new img url every 5 seconds, and then update the image by changing img.src. I tested the same (in IE8, firefox) and it worked without any issues in my development server. But, when I try to put it on production server, many people are complaining that they are not able to see any image at all. Code: if (url_received){
var path = url.substring(url.indexOf("/"));
var img = document.getElementById("testimage");
img.src = "/test/media/" + path;
}
I cannot think of a reason why this is failing for others. Is this due to any security issues? If someone helps me out, I would be very thankful. Hello. I'm creating a simple auto updating script based on PHP and using jQuery to set the interval to 1000 miliseconds. It works in FireFox, as the only one I've tested so far, but in Internet Explorer (Version 7 right now, didn't test others) it just freezes and doesn't auto update. Doesn't auto update either if I refresh the page, so something's messed up here. I'm using the same way of auto updating on other things, such as a chat-page - works on those in all browsers, so I'm kinda on a lost track here. Here's the JavaScript/jQuery: Code: <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
function loadContent() {
$('#count').load('counter.php', function() {
setTimeout("loadContent()", 1000);
});
return false;
}
$(loadContent);
And this is what I put on the body of the page: Code: <div id="count"></div> Can anyone see what my problem is? And any workarounds for this? |
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