Function To Check Whole Numbers

Apr 8, 2009

I have a piece of javascript code.

1. It retrieves a value of a cookie (this works)

2. A function is called to check that only whole numbers were entered into an inputbox.

Code JavaScript:

When I load the page, the page gives a "The page loaded but with erros" warning, and the code doesn't work.

I call it using:

HTML Code:

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Check Numbers Entered

Jul 23, 2005

I am constructing an HTML questionnaire and one of the questions
requires people to rate some choices from 1 to 5, where 1 is their
favourite and 5 is their least favourite:

Car
Bus
Taxi cab
Train
Airplane

Each choice has an INPUT TYPE=TEXT tag to contain the response. I
also have a function that is called ONCHANGE in order to check that a
number is entered between 1 and 5:

function CheckNos(obj) {
if(obj.value.match(/[^d]/) || obj.value<1 || obj.value>5)
{alert("Please enter a number between 1 and 5");obj.value="";return
false}
}

This works fine, but ideally I would like a function that could check
ONCHANGE that someone has not filled in the same number twice, for
example answered "1" for all of them. They are only allowed to use
each rating number once, so rating their choice 1 to 5.

Can anyone suggest a short function that could accomplish this easily?
Could I use some kind of array with 5 elements and allocate a flag
value once that number had been chosen, then check that the value had
been set?

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Jul 26, 2005

I would like to add a plausability check for numbers with JS, but regex is not
really a strong knowledge of mine. Can anybody give me a hint, or lead me to the
right script for doing this?

Inside the form a user can place a price which I would like to be only a number,
smaller than 100000 and there should no , or . be inside the value. otherwise
they should see an alert message. Code:

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I was wondering if it is possible to validate tex boxes and check for numbers etc..

Take a look at this page:-[URL]... I want to validate the "Average annual income" and "Holiday entitlement" fields.

The salary field should be no bigger than 1000000 and should display to two deciaml places, and the holiday field should be no bigger than 99.9..

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Jun 1, 2011

I have a form with a text box where users can enter a 10 digit code. The 10 digit code can be just numbers/letters (eg. 0123456789 or abcdefghij) or it can be a mixture (eg. 0a1b2c3d4e). What I would like is if the user enters a code which is a mixture of numbers and letters then the submit url goes to mixed.php If the user enters a code which just has letters or numbers then the submit url goes to sole.php change the url from selecting radio buttons.

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Mar 19, 2010

I am using this code to validate a form to check that only numbers have been entered but when I enter alphabets the javascript raises an error but still submits the form.

<script type='text/javascript'>
function isNumeric(elem, helperMsg){
var numericExpression = /^[0-9]+$/;
if(elem.value.match(numericExpression)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}}
</script>
<form>
Numbers Only: <input type='text' id='numbers' action= "desktop.html"/>
<input type='button'
onclick="isNumeric(document.getElementById('numbers'), 'Numbers Only Please')"
value='Check Field' />
</form>

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Apr 2, 2011

This is the function CheckmyForm.I need check that you enter only letters, numbers and special characters ",", "." and ";" in the TextareaS1 field.

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I want a function that when you check on a check box another check box appears.

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Nov 29, 2010

Basically I'm going through and renaming div id's, etc to manipulate later in functions.I'm using jQuery's detach() which is working but for some reason my while (now for loops) are not working and providing me with bogus numbers.

Code:
var arrayFights=[0,1,2,3,4,5,6,7,8];
var counter = theBox; //where to start in the array
//first change numbers larger than counter
for(i=1;i<fights;i++){
arrayFights[counter] = i;
counter++;

[Code]...

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May 7, 2009

What's supposed to happen is when the program is run the user clicks on "Select your Numbers!" their then asked for 5 numbers which they input and then the numbers are checked by a function called �isAlreadySelected� for duplicates and if there is an alert is shown. When 5 numbers are entered correctly then they are shown by a window.alert.

Its done in to 2 functions

When I run the below code I'm prompted for the 5 numbers but it isn't checking for duplicates and my selection is undefined.

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Apr 24, 2011

This is my program:

And my question is how to make it display error if I have entered letters in the age box or numbers in a name box? Currently I have only if it is different from 1, so what should I write instead of 1 ?

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My question is ... How do I sort an Array on numeric, not character values ?

In the example below, after sorting the contents are 1,10,2,3 .

How do I get the contents to be 1,2,3,10 ? Code:

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Jun 21, 2011

I've got my code, and the task is to generate two random numbers, the user then inputs an answer for them added together, then the program checks the answer and displays either "correct" or "wrong". Here's some of my code:

Code:
<HTML>
<TITLE>Assessment Task 3 : Rohan Gardiner</TITLE>
<HEAD>
<SCRIPT LANGUAGE ="JavaScript">
function maths(){
var response;
var answer;
answer = document.questions.answer.value;
if (answer==document.adding){
response = "correct";
} else {
response = "wrong";
} document.questions.result.value = response ;
} function randoms() {
rndNum = Math.random();
Num = rndNum*20;
Num1=rndNum*10
document.write(Math.round(Num)+"+"+ Math.round(Num1));
} function adding() {
document.write(Math.round(Num) + Math.round(Num1)); }
</SCRIPT></HEAD><BODY>
<h1 align="center">Rohan Gardiner Assessment Task 3</h1>
<FORM NAME = "questions">
<SCRIPT Language=JavaScript> randoms(); </script>
=
<INPUT TYPE = "textbox" NAME = "answer" > <BR>
<INPUT NAME = "dobutton" TYPE = "button" Value = "check" onClick= "maths()">
<INPUT TYPE = "textbox" NAME = "result" >
</BODY></HTML>

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May 9, 2010

This sci calculator listed in [URL] has Round function which rounds the result to a nearest integer. I wonder if it possible to easy modify it so that it would leave two numbers after decimal point when it perform rounding? The calculator's script has these codes related to Round:
<INPUT style="WIDTH: 74px; HEIGHT: 31px" onclick="Round()" type=button size=24 value=Round>
And
function Round()
{form1.display.value=Math.round(form1.display.value);}
I tried {form1.display.value=Math.round(form1.display.value,2);}, but it did no do it.

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Sep 26, 2011

I am working on a Phone Number Form. The link of script: [url]

Questions:

(1)I wanted to know if code this script so that instead of the phone number appearing as: (123)456-7890

So that it appears as: (123) 456-7890 with a blank space after the ")"

(2)If that's simple, is there a way to error-check it so that only numbers can be entered into the phone number input field?

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Unable To Execute Function Designed To Calculate The Average Of Numbers Inputted?

Oct 4, 2010

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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Apr 20, 2009

How do i use a function to find the average of the values in an array of numbers passed as argument to a function.(using java script) thank you for your help...

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Include Numbers And Alphabets Instead Of Numbers Only?

Apr 7, 2009

I need to modify the script showed at: [URL]

Right now it allows entering "numbers only", I need it so that it allows numbers and alphabets only, no special characters or spaces.

And yes, one more question, does the first part of the code need to be added in the <head> of the document or <body> ?

The code at the above URL is as follows:

<script type="text/javascript">
// initialise variable to save cc input string
var cc_number_saved = "";
</script>

[Code].....

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Check If Function Exists

Oct 19, 2005

How can I check if a function exists in any of the scripts on my page?
I prefer if it can work for both Javascript & VBScript.

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Jan 17, 2006

What is a cross-browser way to check if a function has been defined?

It seems that this code

if (myFn) {
myFn();
}

executes whether myFn is defined or not. When it is not, a JS error
results.

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Nov 24, 2010

I have a webpage with a single form. Under that form I have two separate lists of checkboxes. One set is called eventList the other is assigneeList.I have added two other checkboxes, one is as follows,

Code:

<input name="checkAllEvents" type="checkbox" id="checkAllEvents" onclick="checkAll(this.id, 'eventList')" />

The other is,

Code:

input name="checkAllDelegates" type="checkbox" id="checkAllDelegates" onclick="checkAll(this.id, 'assigneeList')" />


What I want to do is, check all the assigneeList boxes with the same value as the checkAllDelegates checkbox. And the same go the other set respectively.Through rummaging around I came up with the following,

Code:

<script type="text/javascript">
$(function checkAll(id, name) {
$("INPUT[@name=" + name + "][type='checkbox']").attr('checked', $('#' + id).is(':checked'));
});
</script>

However nothing seems to happen when I check the boxes, what am I doing wrong?

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Mar 5, 2010

I would like to check if a function exists before define it. Does this make sense:

Code:
<script language="JavaScript">
if (typeof this.window['foo'] != 'function') {

[code]....

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Mar 7, 2010

I have a check box validate function that I use (below) to make sure that atleast one check box is checked before the form is submitted.

Code:
var checkFound = false;
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[code]....

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Function To Check Only Alphabets?

Jun 16, 2011

like IsNan for number is there any function to check only alphabets...

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i tried checking for document.function_name(), but that apparantly does
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