I have a calculated value that is negative, which I need to display in a javacript prompt as positive. In ColdFusion, there is a function called ABS(), which gives you the absolute value of the number in question, so ABS(-5) = 5. Is there something similar in javascript? If no, how would I display a negative number without it's negative sign? Again, this is only for display purposes withing an alert.
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I'm just starting out learning and have sort of given myself a couple of basic problems to solve. I pretty quickly found something that's apparently hard to Google.I've made a page that shows a counter number, starting at 0, with buttons that will increase or decrease the number by 1 or 10.So I'd like to figure out how to show that number in red when it is a negative number and in green when it is a positive number. I've tried a couple of things, including an if... else, but here's my latest crack:
var counter=0;
function countUp() {
lastCounter=counter;
[code]....
Hello everyone... I've got a question about an onKeyUp event. I'm using a text box that HAS to be a negative number therefore it has to have a - sign in front of the number. Can someone point me in the right direction as to how to write a function to do this? Thanks so much...
View 5 Replies View RelatedIf a negative number is entered into the reading variable it should be displayed as a zero. This works with the first calculations such as average but right at they very end the the alert wont display the highest average it just displays the one which has a negative number typed in to it.
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I have a function that does some calculations and populates some text fields with the results. I also have a function that changes the font color of the numbers to red if they are less than zero. What I dont have is a way to make them work together. I imagine I need to pass the results of the calculation function to the change color function, but not sure how to go about doing that. Here is the calculation function:
function to calculate the total costs, gain/loss and return percent.
function calculate()
{
[code]....
Write a program which takes a series of positive integers as input : 1, 2, 3 …
When input is complete, as indicated by entry of an end of data flag ( -2), the program will output the largest of the entered values.
I would like to be able to make it so that an order form only submits positive results.I have modified this form for my friends website. She has 50 different products that she makes (different sizes and colors). The form submits results for things ordered but also for things not ordered.
PROD_yellow_3.00=
PROD_green_3.00=
PROD_blue_3.00=
[code]....
i want algorithm for positive tainting and syntax aware evaluation
View 1 Replies View RelatedI'm currently doing on a project, frankly speaking i'm new in javascript only know the basics. I'm not even sure whether this thread is suppose to be here or under html.. I'm suppose to create some codes that enable a html page to load to the next html page when the mouse move from left to right within a specific time and distance(positive X coordinate) and also the other way round (right to left) once i figured out this. I've got an example online and edited it. Please take a look at my codes.
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test01.html is just blank page created to make sure it loads. However i would like to load from test01 to another html page but no matter how i tried to edit the codes, there's errors. I cant possibly copying and pasting the exact codes to every page i want to load to right? And is it possible to sortof increase mouse sentivity such that i can most probably load to the next page in first few tries of moving the mouse on the first page. Is it common that when i launch the html on IE and Firefox somehow after showing the first page for maybe 1 second, it immediately jumped to 2nd page and i have to go back to 1st page to try out.
i wish to count number of characters in textarea box during typing in and display it somewhere in html page. so the number will increase during writing. is it possible to do it by javascript?
View 6 Replies View RelatedIs there a formatting or rounding technique to specify the number of digits to display after the decimal?
View 2 Replies View RelatedI'm just want to display the result of the factorial number, but i keep trying and nothing happend i think it has something to do with my function.
<html>
<head>
<style>
input {width:30px}
[Code].....
I trying to display a random number using innerHTML
Here's my code:
HTML Code:
<html>
<head>
<script language="JavaScript">
[Code].....
I have 3 textbox controls on my web page that are numeric currency fields in which a user can enter a numeric value, either positive or negative into TB1 and TB2 (both of these fields go thru edit checks to make sure a numeric value is entered and then return a currency value ie; $2500.00). TB3 is calculated resulting in TB3 = TB1 (($6500)) - TB2 ($2500).
My problem is that if a user enters a negative value for TB1, it returns a "NaN" and the value in TB3 turns out to be the same value as in TB2. Essentialy the calulation ends up being 0 - 2500 = 2500 (see screenshot). I've attached 2 functions below.
Code:
function cal_Overage_Shortage() {
if (make2Number("TB_LowPoint") <= 0) {
document.getElementById("TB_OverageShortage").value = GetValueTextbox("TB_LowPoint") + GetValueTextbox("TB_RequestedLowPoint");
[Code]....
So never done this one before so I am having a bit of a time trying to figure this one out.
Say I have a list of LI element and only a few of them have a inline style of display block, the rest have a display of none.
How would I go about looping through and dertmining the number of elements that have a display of block?
for(var m = 0; m < li.style.display.length; i++)
{
alert(m);
};
The above is just crazy but where my mind melts..
I've just started some JavaScript development, but have run into a bit of a problem with a Greasemonkey script I'm working on. This script is for personal use. I'm doing a variety of things on a page, including auto-refreshing it. I want to display the number of clicks (preferably just on links) since the last refresh.
View 1 Replies View RelatedI have the following calculation (simplified to focus on the point):
Code:
var scroll_percentage = scroll_button_distance/scroll_wrapper_width;
or imagine this is:
Code:
var scroll_percentage = 100/500;
The answer is -INFINITY
How do I make this into a usable number?I searched for INFINITY and found plenty of info but am not sure how to simply get the "0.2" answer I need for the next calculations.
I need help finding where an error is occuring in my code. I use a
try-catch block like this in my global.asa:
} catch (e) {
Application('errormsg') = ("An exception occurred in the script. Error
name: " + e.name
+ ". Error description: " + e.description
+ ". Error number: " + e.number
+ ". Error message: " + e.message); }
And this is what is SOMETIMES returned when I display
Application('errormsg'), the rest of the time, it works:
An exception occurred in the script. Error name: Error. Error description:
Path not found. Error number: -2146828212. Error message: Path not found
But I don't know which path is not found! (I'm using the filesystem object
and importing data from a file into SQL.) Is there a way to display the
line number of the error or more details? Or do I just have to try to catch
the error by going through each bit of code?
I have got this piece of code:
Code:
I would like to display the number 1 at first and then 2. but this code produces number 2 for both alerts. I was able to achieve what i wanted with "new" constructor when creating functions but this is not a good practice and after all i am passing these functions as an event handlers and it can't be done with "new" keyword because it is throwing error. I think there are some solutions with arrays e.g the x would be an array of numbers, but i don't like it. Am i missing something important?
I occasionally need to set a negative margin on objects for positioning but 1.6.x ignores the declarations. This use to work fine with earlier versions. Has this issue been addressed? I tried all the combinations I could think of and the setting is ignored if a value is negative. (did not find a problem reference when setting a negative value in the forums)
$(objRef).css(marginLeft, "-20px");
$(objRef).css("margin-left", "-20px");
$(objRef).css(margin, "0px 0px 0px -20px");
[Code].....
I'm just learning javascript and am editing a calculator form that will calculate square footage and write to a form text field. I have another form filed that I would like to display a number based a series of if else statements. ex: if square footage > 2761 then display 5.0., if square footage > 2521 then display 4.5. etc.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "<HTML>
<HEAD><TITLE>Size Calculator</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function CalculateSum(Atext, Btext, form){
var A = parseFloat(Atext);
var B = parseFloat(Btext);
form.Footage.value = A * B;
form.Size.value = 21;
}
/* ClearForm: this function has 1 argument: form.
It clears the input and answer fields on the form.
It needs to know the names of the INPUT elements in order to do this. */
function ClearForm(form){
form.input_A.value = "";
form.input_B.value = "";
form.Footage.value = "";
form.Size.value = "";
}
// end of JavaScript functions -->
</SCRIPT></HEAD><BODY>
<P><FONT SIZE="+2">Sizing Calculator</FONT></P>
<FORM NAME="Calculator" METHOD="post">
<P>House width (ft): <INPUT TYPE=TEXT NAME="input_A" SIZE=10></P>
<P>House length (ft): <INPUT TYPE=TEXT NAME="input_B" SIZE=10></P>
<P><INPUT TYPE="button" VALUE="Calculate" name="Calculate" onClick="CalculateSum(this.form.input_A.value, this.form.input_B.value, this.form)"></P>
<P><INPUT TYPE="button" VALUE="Clear Fields" name="ClearButton" onClick="ClearForm(this.form)"></P>
<P>Square footage = <INPUT TYPE=TEXT NAME="Footage" SIZE=12></P>
<P>Size = <INPUT TYPE=TEXT NAME="Size" SIZE=12></P>
</FORM></BODY></HTML>
I've been trying to figure this out for hours. I want to write a js so that if the number in the 2nd column is negative, then the javascript changes the css color to red, so that the number is red. If the number is positive, then make it green. Do I need an array or loop, I just can't get anywhere.
Here is my code:
<!DOCTYPE html>
<html lang="en">
<body>
<table>
[Code]...
To give you a little background about myself, I am a complete JavaScript novice. I am used to SQL scripting a little. We have recently moved to a web IT Service tool, we have taken on the programming of this tool and it is mostly using JavaScript. Within my tool I am trying to create a field to display the financial Period Number, based on the open date of a task using a 4 weekly rotation. Therefore what I am trying to code is;
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I have a problem in asp application validation. My textbox only accepts numeric value.It should not accept empty field and negative values and charcters.I am not aware of IsNan function.
View 8 Replies View RelatedIs there a way in a regexp to *not* match a fixed string value?
Using [^blah] gives matches to anything not containing *any* of letters
b,l,a and h. Whereas I want to match anything that does not containing
the exact string 'blah', i.e. *all* the letters.
Possible?
I am having some difficulty in constructing a window.confirm() function that works with my code.So if the form data is valid, I need to use a window.confirm() dialog box to show the user's total cost based on the rental rate of equipment chosen and the reservation period. The user must accept the cost by pressing the confirm button, and if user cancels do not submit data.I have written this code but cannot figure out how to find the number of days from the 2 date fields and use that to calculate and display the total cost.
//confirm submit and display rental cost
var equip = document.forms[0].equipment.value
var pDate = document.forms[0].pickupDate.value[code].....
