Regular Expressions Replace - Detect The Number "2" And Put It Superscripted Past The Number 5

Jan 3, 2011

Formerly I've been replacing characters with javascript using the following code.

paramString = paramString.split("").join("<sup>");
paramString = paramString.split("").join("</sup>");

So if the user on my website types 52 it would return the following value: 5<sup>2</sup>, or just, 5 how do I detect something like this. if they enter: 5 how can I detect the number "2" and put it superscripted past the number 5. so the javascript reads this: 5 and returns this: 5<sup>2</sup>

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Regular Expressions - Detect Letters In String?

Mar 2, 2011

I'm trying to make a script which will check if the string which the user sent from a form contains ONLY letters. The problem is if the user entered something like this "25 years old" it allow that to be submitted. It only blocks submissions of the form if the user submits NO letters like this "12345". I want it to block submissions if at least one character isn't a letter. Here's my code:

var message = document.myform.formtest.value;
var allowed = /[A-z+]/;
if(!allowed.test(message)) {
alert("The field only allows letters (a-z).");
return false;

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Everytime Number 12 Would Show Up On The Card An Image Would Replace The Number

May 5, 2011

I am working on trying to create a Picture Bingo JavaScript. I am using the standard Bingo Card Generator and it works great however, I need help coding the script so that the number are associated with a picture for example everytime number 12 would show up on the card an image would replace the number. Here is the code that I am using:


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Regular Expression For Phone Number?

Dec 10, 2010

I need from regular expression for phone number like this +35 888888 or +35 888-888.

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Change The Timestamp To Sorting By Regular Number?

Oct 30, 2010

I have this code working, it's sorting by text, then a timestamp:

Code JavaScript:

jQuery.fn.sortBy = function() {
var selectors = arguments;
this.sort(function(a, b) {


The script is called by the fuction

Code JavaScript:

$(".list_item").sortBy('.count', '.timestamp');

change the timestamp to sorting by regular number, like 1 - 10?

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Regular Expression Checking String For Port Number?

Oct 28, 2010

I have got this xml file which has a background params which is <background>igmp:


I have done the validation to check if the igmp protocol is used like this

if (clientSpecificData.background.substr(0, 7) == "igmp:") {

Right now I am trying to find out how I can use regular expressions to check whether a port number is used at the end.

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Validation Using Regular Expression For Indian Mobile Number

Feb 23, 2010

I am trying for validation using regular expression for Indian mobile number. Simply i have tried for"^[8,9]{1}[0-9]{9}$" and some others also but it is not working. I want regular expression for: 10 digit mobile number starts with 8 or 9

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JS Detect The Number Of A Form?

Feb 4, 2009

Is there a way for a JS script to detect the number of the form in which the script resides?

(i.e. document.forms[0]/[1]/[2] etc)


<form action="somewhere.php" method="post">
<script>alert(//num of this form//);</script>
<input type="text" name="myfield">
<input type="submit" value="go!">

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Find And Replace A Number

Feb 12, 2011

When I find a record such as this in a textarea:


There will be from 1 to 4 Pts, if one is missing there will not be a next one. My problem is I replace the first occurrence of any number I find and for certain factors (2 in this case) it could change an already converted number and leave other fields in the record alone. I could split the line on commas to change the first number I find but can't be certain if there are no other commas elsewhere on the line.

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Script That Is Supposed To Check If A Number The User Guesses Is The Same As The Randomly Generated Number?

Nov 11, 2011

I have this script that is supposed to check if a number the user guesses is the same as the randomly generated number.Problem is that the random number generated at the start of the program keeps on changing everytime I click on the "Check if I'm right" button, the random number gets generated again and I never ever get to reach the correct answer

<html xmlns="" xml:lang="en" lang="en">


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OnKeyUp - Using A Text Box That Has To Be A Negative Number - Sign In Front Of The Number

Feb 20, 2010

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...

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Number / Category Association - Automatically Default Correctly When Put In Just The Number

Jun 16, 2011

When updating our agency's webpage daily, [URL] I am looking for a shortcut to save time.. When I update air quality numbers. I have to put the conditions. Ex.. 50 = good 100= moderate etc etc. As you see here(bold and underlined)


Well instead of having to type good or moderate every-time to correlate with the numbers, I want to find a way the category can automatically default correctly when I put in just the number. Ex, if I put in the number 100, it automatically knows to issue/ put Moderate with out me having to type it. I semi wrote a code .. Yet can't seem to know how to execute. Seeing if Maybe I can get some assistance.


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Coding For Textbox - Automatically Change The Number To The Maximum Number

Nov 29, 2011

I have a function below where every time a question is submitted, it will add a new row in the table with a textbox which allows numbers entry only. My question is that I don't know how to code these features in this function:

I want the text box to be between 0 and 100, so if text box contains a number which is above 100, it will automatically change the number to the maximum number which is 100.

Does any one know how to code this in my function below in javascript:


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Number.toFixed() Does It Convert Number Into String?

Jul 7, 2011

When I used toFixed() method on a number, I thought that this method round a number to a specified approximation, but I got a surprising result, the number became string! 15.23689.toFixed(2) ==> "15.24". So does it convert the number into string?

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Script For Counting A Number - Want Down To Another Number That Resets?

Nov 28, 2011

I am trying to figure out how to make a random number I can plug into a script count down from that number at certain times of the day until it reaches 0. I would like it to reset itself at midnight every day. I'm trying to make it work with a script I found on here that resets itself at midnight every day. So instead of it counting down too fast, it would count down to the next number after a randomly generated number of minutes until it reaches 0. But it wouldn't necessarily have to end at 0 at midnight. It could go from 845 to 323 at the end of the day at a slower pace. Is that possible?

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Regular Expressions Challenge

Jul 23, 2005

Coding patterns for regular expressions is completely unintuitive, as far
as I can see. I have been trying to write script that produces an array
of attribute components within an HTML element.

Consider the example of the HTML element TABLE with the following
attributes producing sufficient complexity within the element:

<table id="machines" class="noborders inred"
style="margin:2em 4em;background-color:#ddd;">

Note that the HTML was created as a string in code, and thus there are NO
newlines ('
') in the string, as if a file was newlines are
not an issue. The only whitespace is the space character ' ' itself,
required to delimit the element components.

I want to write an RE containing paranthesized substring matching that
neatly orders attribute components. The resulting array, after the
execution of the string .match() method upon the example, should look as

attrs = [ "id", "machines", "class", "noborders inred", "style",
"margin:2em 4em;background-color:#ddd;" ]

I can then march down the array (in steps of 2) setting attributes
(name=value) to the element using standard DOM interface methods, right?

In approaching the writing of the RE, I have to take into account the
characters permitted to form the attribute name and the attribute value.

I assume a start to the RE pattern as:

<attribute name>=<attribute value>

I then try to find the right RE pattern for <attribute name>, keeping in
mind what the legal characters are for attribute names according to the
HTML standard ("recommendation"):


I believe this patterns conforms to the standard for attribute values:


That pattern tries to be more exclusive than inclusive, although I think
just about every character on the planet, including a newline, is
acceptable in an attribute value, at least the kind one might see in an
HTML document. Code:

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Regular Expressions For Username

May 24, 2007

I am trying to construct a reg exp for a field which can accept username as
(username) or ( etc).

username should allowed alphanumeric values also it should accept -,_,.
it should not allowed @ twice

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Simple Regular Expressions

Jul 5, 2004

I'm having a problem making the regular expression for U.S. zip code verification work.
the regular expression: /(^d{5}$)|(^d{5}-d{4}$)/

My code is below. No matter what I type in, it asks me to correct my zip code. Any suggestions? Code:

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Regular Expressions In JavaScript

Jun 3, 2001

I am trying to use regular expressions within JavaScript for the picture upload component of a shopping cart. I still can't seem to get my mind around them.

I have a page with a working file upload. When you click on browse and then select your file, the file name is also returned to the second field, the picture name field. The problem is that the entire string is returned - 'G:CatalogMyPicturessomepic.jpg' instead of 'somepic.jpg'.

I know this can be pulled out with regular expressions, everything from the right until it hits a / or I included the script and a couple of links. Code:

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Regular Expressions To Perform Validations?

May 6, 2010

know there is a similar post on here but it didn't really give me any actual help on this topic:It seems that I have the correct regular expressions in this however it doesn't want to follow my freaking instructions can you guys maybe show me where I'm going wrong and give me a short source code on how to rectify it. Code is below:

function validate(theForm)
var falseCounter = 0;


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Form Validation Using Regular Expressions?

May 3, 2010

I'm trying to validate the form, but each time I try to do so, all fields return invalid. I've tested my regular expressions with various online testers and they seem to work fine, am I perhaps using it in the wrong way? Or maybe a problem with my functions?


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Form Verification Using Regular Expressions?

Mar 4, 2011

i'm trying to use a regular expression to verify an order. I basically don't want any decimals or negative numbers allowed. I believe I have any digit 0-9 one or more times and negating decimals. but for some reason it allows decimals and letters. also is it correct to put return true or can i just leave it blank?

var varifyThree = /^\d*[^\.]$/;
var productThree = document.getElementById('prod3').value;
if (productThree==null || productThree=="" || varifyThree.test(productThree)) {
return true;


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Form Verification Using Regular Expressions

Mar 7, 2011

I keep getting an error that says item is null. I'm a little lost because once I got my regExp to start working this actually worked for a little bit. When I came back I was getting an error.

var creditExp = /^([345])(\d{3})\-?(\d{4})\-?(\d{4})\-?(\d{4})$/;
var creditNumber = document.getElementById("creditnum").value;
var item = creditExp.exec(creditNumber);
document.getElementById("creditnum").value = item[1] + item[2] + "-" + item[3] + "-" + item[4] + "-" + item[5];
if (item[1] == 4 && document.getElementById("card1").checked == true) {
return true;
if (item[1] == 5 && document.getElementById("card2").checked == true) {
return true;
if (item[1] == 3 && document.getElementById("card3").checked == true) {
return true;
} else {
alert("You must enter a valid credit card number.");
return false;
var billingName = document.getElementById('creditname').value;
if (billingName == null || billingName == "") {
alert("You must enter your first name as printed on your credit card!");
return false;

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Build A Regular Expressions For Email

Feb 3, 2010

Code JavaScript:
function regExpression(stringValue) {
if (stringValue === null || stringValue.length === 0) {
alert("No string was entered"); }
else if (stringValue.match(/^[_.-a-z0-9]+@[_.-a-z]+.[a-z]{2,4}$/i) != null)
alert("This is a valid email.");
else {
alert("The string is not a valid email."); }

The problem is that: Code: works. The 123 in the provider shouldn't be allowed, but it is. I'm trying to build a regular expressions for email.

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Macintosh MSIE And Regular Expressions

Dec 27, 2005

Here's what used up the last couple of hours of my time.

The Mac version of MSIE will not load a script that has this in it:

theItem.elm.value = theItem.elm.value.replace(/^s*(.*?)s*$/, "$1");
Now I had other regular expressions in the script done this way, but in this one case I had to use the object constructor method.

It will won't work in this browser, but now at least the script loads and other functions in the same file work.

I have a solution so basically I'm looking for some insight into this if anyone has it. What is it about this particular expression that upsets Mac MSIE?

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Regular Expressions Crashes My Browser / Why Is So?

Dec 20, 2010

Explain to me why this doesn't work? code... All it does is crashes my browser.

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