Adding To Numerical Values
Jan 27, 2010
I have a numerical value (lets say £11.60 for example) that is passed to another page (ie booking.html?price=£11.60). What I want is for that value to have a certain number added to it. The code below is what I have tried to do this, but I only get the value with the numbers added to the end of it (ie £11.605 instead of £11.65). I need the .replace to stay there as it filters out the random characters that appear because of "spaces" that are passed along with the other variables. Ive tried parseint() and parsefloat() but always get NaN as a result.
[Code]...
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Feb 25, 2011
what i would like is to achieve what has been implemented here : [URL] the problem is that, although i have the numerical values (%) that indicate the traffic that passes through a link available as data, how to display them onto the google map?
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Sep 15, 2009
The first alert seems to contradict the second and third alerts:
Code:
alert(isNaN(null)); // returns false
alert(parseInt(null)); // returns NaN
alert(parseFloat(null)); // returns NaN
alert(null.toFixed(2)); // error: null has no properties
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Jan 5, 2011
I need to get the order of rearrangement for an array after sorting:
Eg.
[a, c, d, e, b, f] sorting order will be [1, 5, 2, 3, 4, 6 ]
I'm implementing it as follows:
Assuming valueClass is class name for elements with values that need to be sorted:
$('valueClass').each(
function(index){
var eachVal = $(this).text();
arraysort[index] = [eachVal, index];
[Code]....
PS: All i need is sorting order for an array that can either be all string or all integer (with a boolean to let me know if its the latter or the former). These are the only constraints.
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Aug 11, 2010
I am getting some numeric values entered by users in textbox and need to sum them up. I am getting the values fine from text box but when I do: var total = baseprice + metal + colour; Then instead of summing them up it shows me: 1002030 where as it should be: 150
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Aug 10, 2010
I basically want the values from the checkboxes to output to a div, I also want to give the check boxes a numerical value eg:
if monday conference selected that would cost
if Tuesday conference selected theat would cost
and output a total based on the selections.its basically confirming the users choices and outputting the total cost to them.I have made a start already but Ive hit a point where Im absolutely stuck.This is the form
<div class="form">
<h1>Online Bookings</h1>
<form id ="theForm" action="mailto:" method="post" enctype="text/plain" ><table>[code]....
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Mar 29, 2011
convert the inputs to numbers instead of strings?I'm trying to make a calculator of sorts
var array = new Array();
function insert(val)
{[code].....
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Oct 23, 2011
How to use JavaScript to dynamically change the colour of the numerical meter readings to show if they are above or below the target value entered by the user in a text box on the page.Those below should be shown in green,those above in red and identical values may be shown in amber.This functionality must be completed client-side without a page submission to the server.You must consider putting the values in a particular tag and then using the getElementsByTagName() JavaScript method.
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Mar 14, 2010
I'm currently designing a website for a takeaway company, and have one page displaying their menu. So that customers can easily calculate how much their takeaway will cost, I'm going to put checkboxes next to each item.Each of the checkboxes' value will be the price of the item, and I need a script that will add the values (prices) of the checkboxes they've ticked.They can then see the total cost of their takeaway without having to work it out, and add or remove items accordingly. I will then add a button which will print out a list of the items they ticked with the total price at the bottom. The customer can bring this in with them and the staff can easily see what they want and how much to charge them.
Firstly, I need to know how to make Javascript add these values (and probably save them as a variable) Secondly, how would I make this display on the page (either after they click a button, or automatically so they can see the price real-time)? - I assume this would be basic coding --- document.write(var) And finally, how could I make a script which would print only the items which are ticked, and the total price?
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Jul 20, 2005
I have a large form, that has text boxes of numbers in rows and
columns. I need to sum the values in the columns, and put the total at
the bottom of the column. But I also need to sum the values in each
row, and put the total at the end of the row.
What is the javascript to sum the values to a few text boxes, and how
would I write the script for these totals to run all at once?
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Nov 21, 2009
I type something on the current textarea/input and all the values get removed after I add another field.
<script language="Javascript" type="text/javascript">
<!--
//Add more fields dynamically.
function addField(area,field,limit) {
if(!document.getElementById) return; //Prevent older browsers from getting any further.
var field_area = document.getElementById(area);
var all_inputs = field_area.getElementsByTagName("input"); //Get all the input fields in the given area.
//Find the count of the last element of the list. It will be in the format '<field><number>'.
If the
//field given in the argument is 'friend_' the last id will be 'friend_4'.
var last_item = all_inputs.length - 1;
var last = all_inputs[last_item].id;
var count = Number(last.split("_")[1]) + 1;
//If the maximum number of elements have been reached, exit the function.
//If the given limit is lower than 0, infinite number of fields can be created.
if(count > limit && limit > 0) return;
//Older Method
field_area.innerHTML += "<li><textarea id='steps' name='steps[]' rows='5' cols='40'>
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Jan 8, 2010
I have 8 peices of data in an Array and I need to add the final 6 to give me a total, but the results are not what I expected. Array example - Code:
var Networking_2009_1 = ['Justin Hopkins','JBH','1','2','3','4','5','6'];
I am adding the values like this -
Code:
var feeEarnerTotal = 0;
for(t in Networking_2009_1)
{ if(t > 1) // 0 and 1 are the Long Name and Short Name, so must be skipped
{ feeEarnerTotal = feeEarnerTotal + Networking_2009_1[t]; }
}
The problem is that when the value is output to the screen it is '123456' rather that '21' as expected. I suspect this is because there is writte data also in the Array, but I'm not sure how to fix it.
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Feb 18, 2009
I'm trying to add together some values held in an array to give a total score. But no matter what I do I get "NaN" instead of the answer. I thought that bunging a couple of parseFloats in there would fix it, but that hasn't worked either.
<HTML>
<HEAD>
<TITLE>
M150_TMA03_2008J_Q4
</TITLE>
[Code].....
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Jan 11, 2010
I am trying to take the values of 2 or more select boxes, add them together and then update a text field each time a selection in one of the select boxes is made. Basically, I am trying to keep a running total.
Currently I have it set up so that onchange it grabs the selected value. The problem is that it is being processed as a string I believe. For instance, if there are two variables, a=111 and b=222, the output in the text field reads 111222. I tried using parseInt, but that just returns NaN (not a number?...just a guess).
I have seen this solved with if statements, grabbing the selected index # and then assigning an integer, but I am hoping there is an easier way.
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Jul 1, 2010
I have several checkboxes that on .click add their ID to an xml string. I am having trouble with it adding multiple ID's, currently if you have one checked and check another, it overwrites the previous. Here's what I have:
if ($(this).is(':checked')) {
services += '<SERVICE><SERVICECD>' + this.id + '</SERVICECD></SERVICE>';
}
How do I make this work with multiple ID's so it adds/removes each one based on click, not overwriting? I need to be able to have multiple ID's added to the string.
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Aug 24, 2009
Im trying to figure out how to add different radio if its selected or not
example:
Radio_Button1 value="5": Selected
Radio_Button2 value="15": Not Selected
Radio_Button3 value="25": Selected
Radio_Button4 value="35": Selected
var addingitup = ??? and im lost??
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Jul 5, 2010
I'm currently working on a website called 'eXtreme Gaming' I've almost completed it, apart from two things.
- Adding two values on my checkout page for the Grandtotal (I've tried everything, but I'm too much of a noob and have probably missed something small).
- Validation of forms (I don't know where to start here, I've looked on w3schools for tuts etc but I'm having difficulty incorporating it on my site)
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Feb 25, 2011
I have some asp:radiobutton lists that need to update a label with the sum of their values each time a user selects a new value. I am brand new to javascripting and would like some insight on how to get this done. I have inserted my code below. :thumbsup:
<asp:Label runat="server" Text="Greeting:" /> <asp:Label runat="server" ForeColor="Red" ID="lbl_GreetingScore" Text="0" />
<asp:RadioButtonList ID="rdb1_1" runat="server" RepeatDirection="Horizontal">
<asp:ListItem Selected="True" Text="N/A" Value="4" />
[Code]....
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Feb 15, 2010
I want to do is add the values of seven text fields on a form and pop that value to an eighth field. I thought the code below would work, but I get "NaN" on the sum field.
Code:
function addHazWaste() {
document.getElementById('HazardousWaste').value = 0;
var HazWasteTotal = 0;
var HazWaste1 = 0;
var HazWaste2 = 0;
var HazWaste3 = 0;
var HazWaste4 = 0;
var HazWaste5 = 0;
var HazWaste6 = 0;
var HazWaste7 = 0;
HazWaste1 = parseInt(document.getElementById('HazardousWasteSentToLandfill').value,10);
HazWaste2 = parseInt(document.getElementById('HazardousWasteSentToWasteToEnergy').value,10);
HazWaste3 = parseInt(document.getElementById('HazardousWasteIncinerated').value,10);
HazWaste4 = parseInt(document.getElementById('HazardousWasteRecycled').value,10);
HazWaste5 = parseInt(document.getElementById('HazardousWasteReused').value,10);
HazWaste6 = parseInt(document.getElementById('BiohazardousWasteSentToLandfill').value,10);
HazWaste7 = parseInt(document.getElementById('BiohazardousWasteIncinerated').value,10);
HazWasteTotal = HazWaste1 + HazWaste2 + HazWaste3 + HazWaste4 + HazWaste5 + HazWaste6 + HazWaste7;
document.getElementById('HazardousWaste').value = HazWasteTotal;
}
If I run a separate function that just sets all form field values to zero (including the first line of this function). The summing works!!! Why won't it work the way I wrote it??? It won't work if I set the default value for the sum field to zero, either...
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Apr 23, 2011
I'm a complete beginner to JS and have been playing around with a few test projects but I am stuck with one particular part.It simply creates a new text box if you press the Add Text Box button, and removes the text box if you press the Remove Text Box button.What I want to do now is add a usable value to each text box (e.g. the first text box will have the value "tb1", the second "tb2" and so on - so that I can post the data to use it further on.
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Feb 17, 2010
I'm trying to develop a module for an aplication and i'm basing on an example from the jquery ui dialog [URL] But i'm using radio buttons and a datepicker field but problems occur when i try to add a second row to the table. It just adds the date value but the "motivo" value don't. I mean everything works fine at the first attempt but at the next it fails.
Here is part of my code:
$(function() {
var fecha = $("#datepicker"),
motivo = $("[name=motivo]"),
allFields = $([]).add(fecha).add(motivo),
[Code]....
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Aug 28, 2009
I have a form, and i am trying to add the values of 5 fields into one javascript variable. Then i need an ajax function to search a directory for a php file made from these variables and return a "file exists" or "file doesnt exist" message to the form.
For example, assume the following values have been inputted into the fields;
Field1 (Manufacturer) - Kawasaki
Field2 (Model_Name) - GPZ500
Field3 (Nickname) - None
Field4 (Market) - UK
Field5 (Year) - 2000
Then javascript needs to add the values of Field1 - Field5 (and add a few bits)to create (for example):
Kawasaki_GPZ500_None_UK_2000.php
Then i need ajax to search a web directory for the file above, and if it exists return a link, or if it doesnt exist tell the user it doesnt exist.
im hoping that i can use ajax to do this search without clicking any buttons etc. unfortunately i have very little knowlegde of javascript and ajax and dont have a clue how i can go about implementing this.
i know how to do it by posting the variables to the next page and doing the check using php - but i would like instant validation as soon as the form fields have been entered.
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Feb 25, 2010
I am trying to write this code which the value in the input field can be added on top each time when you get the value from links,
Code:
$(document).ready(function(){
autofill();
[code]....
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Nov 25, 2011
how I can use Jquery to append and remove data into a table by checking and unchecking html checkboxes?(Or any plugin for this?) I would like to generate an online order invoice from the following checkboxes:
<
fieldset
>
<
[Code].....
I find these two example on the net but (The first example looks too similar to what I would like to do but with a table) but Icouldn'tfigure out how to modify them? [URL]
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Jan 5, 2011
I got the following script to work the way I want it by adding new text inputs with new name values, but if there is data added and the add button is clicked again everything disappears. Is there any way to keep the data from going AWAL?
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />[code]....
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Feb 17, 2010
I am creating a html form for the local soccer league for online registration. In a drop down box the user chooses whether in house or travel and both choices have a different fees ao I would like to add a $ value to both options to be displayed in a TOTAL box at the bottom of the form before they submit. I would (if possible) like to have that total displayed on the page they are directed to after submitting the form. This page will have a link to PayPal for the user to pay their fee or I could skip that step and have the user taken directly to PayPal checkout with that total already filled in. Is this at all possible? What are my possiblities? I am NOT any where near a pro at the code writing. I can provide a link to what I have done already if requested.
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