debugging the calculate function
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
[code]....
writing a function that will dynamically calculate filed values.I have a PHP-generated form which may have a varying number of fields. I need to:
1. calculate the line total for each row -- unitprice * units = linetotal
2. calculate total of all linetotals.
I have named my fields as follows:
unitprice[1], unitprice[2]... , units[1], units[2], ...
I have the following calculate function:
function calculateOld() {
// get both values
unitprice = document.forms["invoice"].unitprice.value;[code].....
This does calculate what I need but only if I have up to two rows. I need to make the function dynamically count how many rows there are, and calculate the linetotal for each row. And here's where my limited JS knowledge brings me to a halt.I have been thinking about what this new and dynamic function should look like, but that's the best I could produce...
function calculate() {
var unitprice[i]= document.forms["invoice"].unitprice[i].value;
var units[i]= document.forms["invoice"].units[i].value;[code]....
how things are done, don't just give me the code.
I can get the number of contributers to add up but not the total amount of dollars they contributed. I am not sure if my function is wrong or if I am just confused with what variable to output for the dollar amount total.
[Code]...
I have a table with a number of rows in it each with a delete link which calls $("#" + id).remove(); of course passing in the right table row id each time. I also have a row at the bottom that has divs with totals of columns in each row. After I add a row to the table I call a function that goes through each table row, gets the values that I need and keeps a running total. I finally update the divs in the last row with these totals. However, when I do the row.remove() and then call my calculate function it never completes.
In my debugging it looks like the tblWorksheet table that I'm trying to get to, to get it's rows, is no longer recognized. So I'm wondering if instead of removing the row by the id if I need to call the remove function on the table to tell it to remove the row. If so I'm not sure of the syntax to do that. The following doesn't work.
$("#tblWorksheet").remove("#" + id)
If that's not the case, why I couldn't get to my table after removing the row?
I've been messing with this code for about a couple of hours, and I did everything down to the wire..yet still I am unable to get it to work. When I input the numbers, and click off to the side nothing appears down at the final textarea of the form which is suppose to show the average.I've tried just about everything, sadly all I have to go by is other example codes, and the very intricate instructions which states I must pass the values to the calcAvg() to the second function of performCalc(), which I did, and then I assigned the var calcResult another value. From there I did the return..and after that I'm rather loss as to what to do next to get this code to work, any tips?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
[code]....
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Here is my code.
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//confirm submit and display rental cost
var equip = document.forms[0].equipment.value
var pDate = document.forms[0].pickupDate.value[code].....
I keep getting a syntax error on line 3 and 4 of this very simple script. Normally firebug would give me enough info to fix this but jQuery escapes me. I can see no reason for the errors.
<script type="text/javascript">
$(".shipping-switch[name='shipping_switch']").click(function(){
var selector = "div#sub-address";
if($(this).val() === "1"){
$(selector).slideDown("fast");
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</script>
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[code]....
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