# Double Array - User Input 5 Set Of Miles And Gallons Used To Calculate Mpg

Aug 25, 2009

I need to have the user input 5 set of; miles, and gallons used to calculate mpg. Also need to total miles and gallons used. I have the array ok, but i cannot remember how to figure mpg for each array element. this is what i have. everything works execpt the mpg for each array element.

<!DOCTYPE html PUBLIC "-W3CDTD XHTML 1.0

## Get A User's Input Into An Array?

Jun 10, 2011

I'm adding the ability for the user to input his own values into 6 input fields, some or all of which may be left blank. I have already an array populated (thanks to Paul Wilkins) with default values. How do I get the user's values into that array so the calculations will be performed on it?I got this far, but was unable to understand the problems brought up by JSHint.com.

User input:

HTML Code:

<tr><td>
Alternate spur values:
<input class="display3" type="number" size="14" value="" name="spur1"><br>

[code]....

## Create A 4 X 4 Array Filled With Numbers Input By The User?

Jul 15, 2010

I'm trying to create a 4 x 4 array filled with numbers input by the user. I then need to rotate the grid clockwise like I've shown below.

01 02 03 04
05 06 07 08
09 10 11 12
13 14 15 16

13 09 05 01
14 10 06 02
15 11 07 03
16 12 08 04

I made all numbers double digit just for show in the example so the table is easier to read. So far the code I have is just trying to create the array and fill with numbers from the user. This asks for a number once then doesn't display anything at all.

<html>
<title>Rotate Array Matrix</title>
<body>

[Code].....

## Ask The User For Input - Store It In Array And Use An Alert To Check If It Works And Functions?

Dec 8, 2011

i need to ask the user for details about a car, i will not know how many cars are going to be stored and therefore need an array i think. I need the function for asking the user and will need to repeat the code later in a menu. at this stage i just want to ask the user for input, store it in array and use an alert to check if it works?

<html>
<script>
// Purpose: Gather car information and store it in a datbase
// Ask user for REG info, CAR MAKE, car VIN
var CarDetails = {
RegNum:"",CarMake:"", CarVin:"";
}
[Code]...

## Return Double Array - 2dimensional Array?

Dec 16, 2002

how can a function return a double array? here's some code to explain

function dummy(param) {

var array0 = new Array();
var array1 = new Array();

for (i=0 ; i<5; i++ ){array0[i]=i; array1[i]=4-i;}

if (param == 0) return(array0);
if (param == 1) return(array1); }

but I want to return array0 and array1 at the same time an I make an array existing out of arrays (2dimensional array) in JavaScript?

## JQuery :: Prevent The User From Submitting A Form Twice By Double Clicking On The Interface

Oct 12, 2009

I am using jQuery and blockUI to prevent the user from submitting a form twice by double clicking on the interface: This is in my global js file and is called on every pages

\$('form').submit(function(){\$.blockUI({message:'', overlayCSS:
{opacity:0.2}})});

This was working really well, but if I have validation on one of the form submits that returns false, I of course want to unblock the UI.

## User Input Restrictions - User To Input Age Greater Than 17

Feb 24, 2009

I need help with user input. I need to restrict the user to input age greater than 17 and weight restricted to the range of 80-300.

My code is not working:

## Automatically Calculate The Result When User Enters Values?

Sep 22, 2010

I want to automatically calculate the result when user enters values.. but keypress or keyup is not working...

Code:

<label>No 1</label>
<input type="text" name="n1"/><span></span>
<label>No 2</label>

[Code]....

## Create A Water Bill That Calculates The Number Of Gallons

Mar 15, 2010

I have a javascript class and one of the assignements that we had to do was create a water bill that calculates the number of gallons used and the price for the water consumption. It will not work at all...

## Array Will Not Calculate Quotation

Mar 24, 2009

i have a problem with the arrays.i have entered all the relevant arrays to calculate a list of cheap quotations but when clicking on the submit button it doesnt do nothing.when clicking on the submit button i want it to bring up the list of quotations based on the data entered in the form..

## Calculate Average From Dynamic Input?

Jul 12, 2010

i am trying to create a interface to average down variable amount of input and show them on screen as they type....this is what i came up with.....and the input box fields....these are dynamically created...

<input type="text" name="datup" size="3" onchange="calc()" >
<input type="text" name="datup" size="3" onchange="calc()" >
<input type="text" name="datup" size="3" onchange="calc()" >

[code]....

## Program - User Must Enter Number Of Books And Price And Then Calculate The Total Cost Of Items

May 4, 2011

I have a program in which a user must enter number of books and price and then calculate the total cost of the items, i have tried and tried to get it working to no effect can anyone see where i have went wrong.

## Huge Array Performance - Re-calculate The Speed For Each Movement?

Nov 8, 2011

I have got a div-container the size of the window itself. So its relativly big.This in turn has a child-div-container which is substantially larger.This 2nd div-container is absolutely positioned in the first and shall now be scrolled using the mouse. Because for this Project i don't want scrollbars.If the mouse moves to the edge of the outer div, the inner div should move in the appropriate direction.For that the first container has a MouseMove-listener and depending on how close the mouse is at the edge, a scrolling-speed-variable is set.Sidenote: the speed has not a linear but a quadratic increase. The moving itself is not the problem, but the calculation.Because of the quadratic increase in speed the calculation is rather expensive.The question is now whether it would be more performant if i create two arrays (for x- and y-axis) in which I store the velocities for each pixel, or whether I re-calculate the speed for each movement.

That would mean, at a window size of 1200x700px I had two arrays. One with 1200 fields ald values and another with 700. And thats a relativly small resolution.In this way the calculation must be performed only once. After that I only need to read the velocities out of the arrays.

## Calculate Sum Of Multiple Input And Show Total?

Oct 31, 2009

I've been trying to check what I did wrong in my code but still the total doesn't show. Below is my javascript function:

function CalculateTotal(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r)
{
var tota= document.getElementById('a');

[code].....

## Input Formula For Website - Calculate Data

Jul 27, 2011

I am in the middle of designing a website and I am pretty new at it. The guy I am designing the website for wants me to make input fields that calculate data that is entered into them. There are 3 formulas that I need to make.

a=b*.262*c
c=a/(b*.262)
b=a/(c*.262)

They are the same formula just solving for different variables.

## JQuery :: Calculate Number Of Inputs Where Name Starts With Name^ And Input Value Is>0?

Sep 8, 2010

I have many inputs with name totalsum1,totalsum2,totalsum3 etc. I need to calculate number of inputs where name starts with "totalsum" and value is >0. I need to send result to another input with id="#rowtotal".My code:

\$("#rowtotal").val((\$("input[name^=totalsum]").val>0).size()); It's not working. Best RegardsRafa� Koszyk

## Create A Text Area Input Filed For User Input?

Jun 15, 2011

I am trying to create a text area input filed for user input, and i want to be able to allow the user to format thier text, just like the ones used in this user forum. I am writing my website in html, php, javascript and css with a MySql database. I am trying to understand how to create such an format-able text area for input.

## Calculating Input Fields - Get The Math Function To Calculate And Display Properly

Nov 5, 2009

I can't seem to get the math function to calculate and display properly. Can anyone point me in the right direction.

Here is my code.

## Array - Show / Hide Several Paragraphs When The User Clicks Next And Then The Reverse When The User Clicks Prev?

Feb 22, 2011

How to show/hide several paragraphs when the user clicks next and then the reverse when the user clicks prev.

## Sum Of Array Elements - Add And Delete Dynamic Rows And Auto Calculate The Amount Field By Multiplying Qty And Rate

Mar 21, 2011

This is my code to add and delete dynamic rows and auto calculate the amount field by multiplying qty and rate.

[Code]...

## Calculate "time Passed" On User's Computer?

Jun 25, 2011

I am trying to figure out time functions in PHP. However, I come to know these time and date functions work on the Server. I want to calculate what time a user takes to solve a problem. That means I need to know user's machine's timings. How can that be incorporated? Do I need to use Javascript?

## Pass Input Array Value To Function To Calc Different Input Value

Jul 23, 2005

I have an array of input text boxes (txtDOBn) where n is created at
load. On the onchange event I want to calc the age and show in adjacent
input text boxes that are readonly and also arrays (an age calced for
each DOB entered). I was going to use the datediff function in vbscript
to do the calc. Code:

## JQuery :: Compare Input Value With Array - Match Only The First Input

May 11, 2009

Why when i compare input value with array, he match only the first input.

This is my code:

## Invoice Form - User Can Add - Input Field - After Adding A New Input Field - The Content In The Other Fields Is Deleted

Sep 1, 2011

I'm now working on kind of invoice form which in it the user can add as much input field as he wants.

The problem is that after adding a new input field - the content in the other fields is deleted.

Code:

## User Input Appearing On Another Input Box

Jan 16, 2010

On a single form, I need to capture the users input on this input box

HTML Code:
<p>
<label for="Student ID">Student ID
</label>
<input type="text" name="sesStudID" />
</p>

to this input box HTML Code: <p><label for="User Name">User Name</label><input type="text" name="sesUserName" disabled="disabled" /></p> so as the user inputs to the first input box it will at the same time appear on the second input box.

## Stop Users From Double Clicking On The Page Or Disable Double Clicking?

Sep 3, 2009

I have a page that submits to a db then re-loads its self with new information. Unfortunately it goes wrong when the user double clicks on a one of many text links that provides the info for the display on reload. How do I stop users from double clicking on the page? Ideally I think I would like to call some sort of js function from body onload as I presume this would then cover the whole of the page, but have no idea if this is possible or how to go about writing it.