# Force User To Input 2 Decimal Places In Form Field

Jun 17, 2010

I have a small piece of code (taken largely from W3 Schools)that checks that there is a decimal point entered in a form field, but what I really need is to check that the number entered ends in 2 decimal places.

e.g.
10 is Invalid
10.00 is Valid

My current code is below. Can someone explain what I need to do to ensure that the user enters a number including two trailing decimal places please?

[Code]...

## Enforce The Use Of 3 Decimal Places In An Input

Apr 1, 2011

I am looking to enforce the use of 3 decimal places in an input. I have found some scripts that do this, however, I also want to format it this way in case someone enters LESS than 3 decimal places. If a user enters 1.25, I want it formatted as 1.250 If a user enters 1 I want it formatted as 1.000 etc.

## 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:

## Limit It To Only 2 Decimal Places Like 95.44?

Jul 27, 2007

If I get a percentage result on a form, for example: 95.44186046511628

Is there a way I can limit it to only 2 decimal places like 95.44? It won't always be 95.44186046511628, so it just wouldn't apply to just that one percentage. I need it to only have 2 decimal places with whatever the value is.

## How To Add Decimal Places In Integer

Nov 30, 2010

I want javascript function that could convert from integer to float e.g if user enters 10 then it should convert it to 10.00 or better 10.000. If user enters 10.0123 then it should convert it to 10.0123.

## How Does The Total Will Be Come Two Decimal Places

Oct 14, 2011

In this code how does the total will be come two decimal places

[Code]...

## Round Up 2 Decimal Places

Nov 17, 2011

I am trying to use the following javascript [URL] to create something similar to the example on [URL] for a school project but I wondered if someone could advise me how I can round numbers to 2 decimal places in the field box as I have to convert the calculated value by an exchange rate, e.g.:

where x=100 and y=50
calculate="(x+y)/1.55"

returns a value of 96.77419355. I would like to round this figure up to 2 decimal places so it would read 96.77 but I cannot figure out how to do this.

## Code That Changes Decimal Places?

Nov 9, 2009

Is there a code that changes decimal places? Example if you have 333.333333..... can you make it say just 333

## Round Variables Up To 2 Decimal Places?

Jan 11, 2010

My javascripting is getting there, I have been learning for the last week and I have produced a working script however im getting stuck with how you round a variable (stored user input) up to the nearest whole number to 2 decimals I have looked at many tutorials and I think that the math.round has to be used somewhere but I cannot work out the syntax to integrate it into my code because everywhere I have looked seems to be using document.write syntax:

[Code]....

## Output To Two Decimal Places As Its Currency

Mar 16, 2010

I am new to javascript and I am attempting to output to two decimal places as its currency. As an example it currently outputs as 127.1 instead of 127.10.

[Code]....

## Force Insert Text Into Form Text Input Field Onload

Apr 13, 2010

Have a small problem with a cms whereby when i try to insert default text into an input text field using the "value" attribute it gets deleted. I was thinking to force insert the text in there when the page load with javascript but not sure exactly how...

<p><input name="vericode" id="vericode" value="This text doesn't display!!" type="text" onclick="value=''"/></p>

## Function To Format A Number To 2 Decimal Places?

May 5, 2010

Is there a built in function to format a number to 2 decimal places and to add commas like below.

2,222.33
30,033.98
1,222,345,99

## JS Quote Calculator Rounded To Two Decimal Places

May 17, 2011

rounding the quote up to two decimal places. I've seen a lot of codes and tried a bunch (math.round, tofixed, toprecision) but not exactly sure how to use them and where to put them. Calculator can be viewed here along with the code [URL]

## Pass User Input From A Form To One Database Field Using Several Form Elements

May 4, 2009

I need to pass user input from a form to one database field. I'm relatively new to JS but the idea I had was to have several form elements and use JS to collect the users input and send all the values through a hidden element. What's happening is the variable names are being sent rather than the values. The code below is only passing to the next page. Limitations: I am editing an intranet site built by a 3rd party so a lot of the files we've been given are encrypted. I cannot change the method to post.

[Code]....

## Force 2 Decimal Point (money)?

Nov 30, 2011

Function below will output price value in text field based on drop-menu option. It's working but I want it's always show value in 2 decimal point.[code]...

## If User Types In The Correct Info Into An Input Field - Then Show A Submit Button

Jul 2, 2009

I'd like to create a quick and dirty validation method for a form. It's not meant to be very secure.

The way I picture it working is this - there is an input field that asks for a password. If the user types in the password correctly, the "submit" div tag will change from "none" to "block". , which will display the submit button. I just am not familiar with JS enough to know if that's possible.

Here's what I'm starting with:

Code:

## JQuery :: Add Fixed Value To Form Input And Send To Separate Form Field

Jun 3, 2011

I've have a function to take the value entered in a form text box, add 50 to it and put the result in another text box.

When I enter 650.5 I get 700.5 exactly how I'd expect. But when I enter -650.5 instead of getting -600.5 I get -650.050 as though it is failing to parse the float due to it being negative. My understanding of parseFloat was that it recognises negative numbers. Is there a nice simple way to get this to work?

## Grab User Input From A Form?

Jun 17, 2009

I need to grab whatever the user types in an input box and append it to the URL the page is going to, how do I do that?

Code:

<form id="searchCatForm" name="searchCatForm" action="catalogue/search?input=" method="post">
<div class="searchField">
<input id="inp_searchCat" name="inp_searchCat" value="Search catalogue"

[Code]....

## Field Validation As Float With Certain Integer And Certain Decimal

Jul 23, 2005

i have to do in the onkeypress or in onchange the float (real) field validation I try something:

function ValidaCampo(nomeCampo,TotInteri,TotDecimali)
{
DecimalPos=NomeCampo.value.Indexof(',');
Lungh=TotInteri+TotDecimali+1; //sum the ineger + decimal +
decimal separator

if ((window.event.charcode==',') && (DecimalPos>-1))
//i think exist a decimal separator so i don't add any other
else
if (DecimalPos<>TotInteri+1)
//i haven' t insert too much integer
else
if i haven't add any decimal, i add a separator with two zero value
else
if nomecampo.length<>Lungh
//error

}

## Field Validation Needs To Accept Decimal Values -- How Please?

Jul 20, 2005

I need this function to accept decimal values (e.g., 2.5 ok, not just whole numbers between 1 and 5).

## Fade In When User Inserts Text Into Form Field?

Mar 16, 2011

I have a form with a tick at the end of each formfield [code]...

## Updating Form Based On User Input

Jul 23, 2005

I have a form with a select field. Depending on what is selected in this field, I want to display or not display another select field. For example first field asks the user if they drive, if the user selects "NO" the form doesn't change. If they select "YES", another field appears with different makes to chose from. If they change back to "NO" the second field dissapears again.

## URL Link Dependant On User Input In Form

May 28, 2007

I have a form setup on my webpage that grabs a couple pieces of information from the user (ie name, address, etc.) and when the user enters this information and submits the form, the base URL of Code:

## Have Two Input Boxes On A Form Which Receive The First And Last Name Of A User?

Jan 17, 2011

I have two input boxes on a form which receive the first and last name of a user. I want to be able to use charAt() to get the first letter in each box and pass it a third box on the same form. is this doable? May I request some help? I was thinking something like the function below would be the starting point --I stand correct, as it is not working.

<script type="text/javascript">
var str="Mossa";
<!--document.write(str.charAt(0));-->
document.write('<INPUT TYPE=text size=2 VALUE="str.charAt(0);">');
var str="Barandao";

[Code]...

## Adjusting Form Based On User Input

Feb 3, 2001

This is probably easy, but I flipped through the first 100 posts and couldn't find a similar question.

I would like to set up a form with multiple radio boxes in a table. The first row containing two selections, second containing 2..... Once the 1st row/column is selected, the 1st row/2nd column automatically displays the information from the first selection.

I am not necessarily looking for exact code on how to do this, just reference points to go to, and preferably suggestions on the best(meaning quickest) language to do this with.

## Money Validation For A Field - Accept 2 Digits Decimal 000,000.00

Oct 15, 2010

I need to do javascript money validation for a field. the condtions are

1) depending on the Locale (not sure if this can be done in JS like US,Germany..)

2) verify if it has \$,pound symbol, yen symbol..

3) group the digits either like 00,00,000 or 000,000,000

4) accept 2 digits decimal 000,000.00