I have following function, but how can I do addition?
if
f.Field1.value =2
f.Field3.value =3
f.Field4.value =1
then
f.Total.value =231, instead of 6
function update( ) {
var f = document.myform
f.Total.value = f.Field1.value + f.Field2.value + f.Field3.value
return true;
}
var purchasePrice = window.prompt("Please enter the purchase price:", 0);
function calculateTotalCost () {
if (purchasePrice <= 25) {
[code]...
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.):
I am trying to add the elements in an array together and display the result, I am using a user prompt to obtain the elements for the array, this works fine but when I come to add the elements together and display the result all I get is a row of the elements not their sum. The user inputs are all integers (the program adds the prices of items together so they are all numbers,amounts). If the user enters 10, 15,15,20 the result I get is 10151520 not 60.
View 8 Replies View RelatedI am trying to figure out a way to modify all elements in an existing array by adding a value to the value already in the array.
I need to prompt the user to input a value and add that value to an index in the array. I was thinking of using a for loop as I need to do the same for each index in the array.
Talking about a js script which changes an iframe src through a "ref_to
iframe.setAttribute("src", document_path);", I would like to launch a
check() fct when this new document is loaded.
Of course, knowing, I don't want (and can't n some cases where document
is generated by a cgi script) to edit every possible document which is
potentially loadable in the iframe.
In fact, I've through about the idea to on fly add an "onload='check
()'" to every document, but don't know how to do that :-(
Maybe using attachEvent or something arounnd this : I don't know. Of
course, I wish a solution working in the majors browsers.
i have this simple function...
function update(value, oldvalue)
{
var a = value;
var b = oldvalue;
var result = a + b;
document.form.fieldname.value=result;
}
and call the function using a field with this...
onkeyup="update(this.value, other)"
But all its doing is concatenating the 2 numbers together as though they are strings!!!
so if this.value = 11
and other = 15
it displays 1115
i want to add them and display the total, do i need to specify them as being integers or something?
I am having trouble making a website for a vacation rental I pieced this javascript code and form together with a simple goal in mind: -to have 3 checkboxes each with its unique variable
weeks: 2,000
weekends: 325
weekdays: 275
-to allow users to check one or more of the checkboxes, and multiply it by a quantity they choose (ie "I'd like to stay for two weeks (2 x 2,000=6,000) and one weekday (1 x 275=275)
-finally, to add up the totals at the end (6,000 + 275=6,275)
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I have taken part of some code I know works and simply added a print statemet to it as I want it to print to the command prompt, where I am running the script, the value of REMOTEDIR why the addition of the print statement provides an error: ERROR: JScript runtime error: Object expected
[Code]...
I started looking at the new docs today and I'm seeing a lot of noise in the comments... people have posted comments like "thanks", "very useful", "great addition". For example, see the .toArray() page.I could add a "very useful" comment to about 50 jQuery pages -- would anyone care if I liked those? I don't think they should. , these kinds of comments are better suited to personal blogs.Is it okay to flag these comments so they get removed? or is that an improper use of flagging?
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Original
- javascript Code
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