Regular Expression :: String Must Be 6 Characters Long And A-Z, A-z And 0-9

Apr 26, 2007

String must be minimum 6 charcters long and can only contain A-Z, a-z and 0-9 ....

View 2 Replies


ADVERTISEMENT

Regular Expression - Enter A String That Is 2 - 20 Characters Long And Only Has Letters Doesn't Work

Jun 28, 2010

I wanted to try creating a basic expression first. I want someone to enter a string that is 2 - 20 characters long and only has letters. This is what I use so far, and it doesn't work, nothing happens at all when I run it.

Code:
// Check for a valid name.
var namePattern = new RegExp("/^[a-zA-Z]{2,20}$/");
if (namePattern.test(name))
{
window.alert("Invalid");
}

name comes from a input box I display on screen. Also, I would like to update the expression so that there can be one space in the string, but it cannot be at the beginning or end. So this string is like a persons name. Bob is OK, Bob Smith is also OK. Edit: Actually, it is doing something but its always coming back invalid.

View 9 Replies View Related

Regular Expression Allow Alpha Characters Only?

Jan 27, 2010

This is my first serious attempt at using a regular expression.My first name field should allow alpha characters only [A-Za-z], but it seems to be testing for the presence of 1 alpha character. If one is found in the string then anything else is allowed.Bob returns valid which is what I need.Bob1 returns valid but should NOT be valid..1 returns valid not valid which is what I need.My code.

function isValidFirstName(p1_firstName) {
//http://www.javascriptkit.com/jsref/regexp.shtml
var re = new RegExp("[A-Za-z]");

[code]....

View 6 Replies View Related

Regular Expression And Match Anything Between Two Characters

Sep 19, 2009

I have the following code:

var str = "/dev/filler/test0/";
var patt = new RegExp("/test0/$");
var result = patt.exec(str);
document.write(result);
which returns: /test0/

in the var patt line I would like to replace the hardcoded test0 string with an expression that matches any characters between the two forward slashes. I have tried with little success.

View 3 Replies View Related

Escape Regular Expression's Special Characters?

Jun 14, 2010

am in need of escaping the regular expression special characters like '/', '.', '*', '+', '?', '|','(', ')', '[', ']', '{', '}', '\'.I have try with this by the following javascript but i can not achieve that.

RegExp.escape=function(str)
{
if (!arguments.callee.sRE) {

[code]....

View 9 Replies View Related

Regular Expression Methods, Problem With Escape Characters

Sep 13, 2006

Attempting to use javascript's regular expression methods to match a
particular lab number and building which would then be copied to a pair
of textfields, I found that general matching characters needing a
backslash were not recoginized. The following adapted code that finds
a two-button radio selection shows my problem:

function labstat(){
for (i=1; i<3; i++){
if(document.tester.rm_mod[i-1].checked){
var lb = document.tester.elements["lab"+(i)].value;//either
214 or 215*
var bld = document.tester.bldg.value;
if(/*/.test(lb)){ //error:Undetermined comment
// if(/*/.test(lb)){ //error:Syntax error
// if(/5/.test(lb)){ //works to match only 215*
// if(/5*/.test(lb)){ //true for all
// if(/ddd/.test(lb)){ //false for all
document.tester.room1.value = lb;
document.tester.bldg1.value = bld;
}
}
}

It appears that the escaped characters are not recognized, whichever
form of the method is used, i.e var re = /*/; // or = new
RegExp("*");
if(re.test(lb)){
--------
With the --.match(__) method I have the same problem.

View 9 Replies View Related

Perform A Regular Expression On A String?

Sep 8, 2009

I would like to perform a regular expression on a string and if TRUE do something.

I have huge amounts of knowledge doing this in PHP but trying out javascript.

View 1 Replies View Related

Possible To Get Price From A String Using Regular Expression?

Aug 31, 2009

How can I get price from a string using regular expression ? Or by any other means .

Let's say. var str="Our shop receives only $. This shoe costs $200. We don't accept anything else then $"; ow could I retrieve '$200' from this above string. By any means.

View 3 Replies View Related

Regular Expression As String Argument?

Feb 24, 2006

I'm finishing my javascript form validator (only text fields for now) and here's one of the last things that's left.

I'm using class names of input elements as parameters for my validator. To find them i use Element.hasClassName(id, class) method from prototype library. I want to implement minlength parameter - so i grab a regexp tutorial and after a minute i had something like this minlength[[1-9][0-9]*], which finds minlength[1], minlength[666] and so on.

Great, but how to pass this as a paramter to hasClassName method, which requires string as a className?

View 2 Replies View Related

Regular Expression :: String Must Have [a-z] [0-9] In Any Order

Oct 30, 2002

My continuing problem with regular expressions! All I am trying to get is the expression must have at least 1 of these [a-z][0-9] in any order etc etc

RegExp(/[a-z][0-9]/)
didn't work

View 4 Replies View Related

Get Price From A String Using Regular Expression?

Sep 1, 2009

How can I get price from a string using regular expression? Or by any other means .

var str="Our shop receives only $. This shoe costs $200. We don't accept anything else then $";

How could I retrieve '$200' from this above string. By any means.

View 5 Replies View Related

Regular Expression To Check A String Is Alphanumeric Only

Jul 23, 2005

I want to check if the user enters alphabet or numbers only in the
text box. If the user enters non-alphabet or non-numbers, I should pop
up a message and doesn't allow the user to do that. I am using regular
expression to do the checking. But it seems it always return false...

View 6 Replies View Related

Please Help With Regular Expression (string Must Be Letter Plus 5 Numbers)

Apr 21, 2006

I'm developing a web app and I want to validate a users input on a form. I need a regular expression to validate a string which must begin with a letter (i.e. A-Z or a-z) and must have 5 numbers (0-9) after it....

View 1 Replies View Related

JQuery :: Remove String Using Regular Expression?

Feb 10, 2010

I have function code...

I want to remove all parameters, but first. I don't know what's wrong .

View 2 Replies View Related

What Regular Expression Will Match ANY String That Has 10 Digits In It

Jan 13, 2009

What regular expression will match ANY string that has 10 digits in it?

View 24 Replies View Related

Global String Replacement (was Regular Expression)

Oct 12, 2011

I have just spent a while searching how to use regular expression to strip out spaces in a string and replace them with ',' I don't seem to be getting anywhere and was hoping someone could explain how to do it.

So for example:

Mystring = "a b c d"

My string would end up looking like the following

Mystring = "A','b','c','d"

View 1 Replies View Related

Regular Expression - Validate String With Alphanumeric

Oct 14, 2009

How can i validate string with alphanumeric, space, dash and dot in regular expression ?

View 1 Replies View Related

Match Entire String (regular Expression & Javascript)

Jul 23, 2005

I'm trying to perform a very simple validation of user input. I
want to verify that the user entered a six-digit string consisting
entirely of numbers. So anything from 000000 to 999999 is considered
valid. The problem that I'm having is getting the validation to work on
the entire string. In other words, 000000 is okay but 000000000000 is
also returning as a match. Here's a quick code block...I have something
along these lines....

/*********************/
<html>
<body>
<INPUT name="txtNumberField" type="text" id="txtNumberField">
<INPUT onClick="fnTestNumberField()" id=Button1 type=button value="Test
Number!" name=btnTest>
<script language=javascript>
function fnTestNumberField()
{
var sNumberValue = document.getElementById("txtNumberField").value;

if (sNumberValue.match(/A[0-9]{6}z/))
{
alert("match");
} else {
alert("no match");
}
}
</script>
</body>
</html>
/******************/

That is failing when I enter 123456 into the textbox. Why, though? I
know I can replace...

if (sNumberValue.match(/A[0-9]{6}z/))

....with something like...

if (sNumberValue.length == 6 && sNumberValue.match(/[0-9]{6}/))

....or I could assign a maxlength to the input box, of course. The thing
is, I really want to know WHY the regular expression isn't responding
as I'd expect. Is there a syntax error somewhere in the code?

View 2 Replies View Related

Query String Cleaning Using Regular Expression Matching

Oct 16, 2009

I have a search box. I need to remove all the special characters from the search term and then query it.-,?~!@#$%&*+-= all these characters.can anybody suggest a proper regular expression for this ? and the syntax for using it in javascript.my query is saved in var query;

View 7 Replies View Related

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:

{theme.background_video_ip}:1234</background>.

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.

View 2 Replies View Related

Regular Expression That Tests A String To Find Out If Not Empty

Jun 25, 2010

Just a quick one here I want a regular expression that tests a string to find out if not empty. I am currently using /^[a-zA-Z0-9]+$/ which allows all alphanumeric characters, however unfortunately does not allow white space. As I am trying to use the RE for a form name input and I don't wish to separate first and last name, I want to allow users to enter their full name including spaces. Can anyone tell me an RE that allows all alphanumeric characters and white space in a string but does not allow an empty string

View 14 Replies View Related

?: In Regular Expression

Feb 21, 2006

I have seen lot of reg. expession with ?:
For dummy eg
(((XXX)ddd)ff)

The above expression is modified as
(?:(?:(XXX)ddd)ff)

Although both the above expr. gives same result. (RegExp.match() gives
same o/p), most of the places , i have seen second option.

Yes, but different matches r shown (using RegExp.exec())

Is the second expr. most efficient or in particular scenarios?

Any comments???

View 5 Replies View Related

Regular Expression Problems

Jun 28, 2006

At the moment my code is like:

function telValid(inString) {
var regexp = /^[0-9 +()]+$/;
return (inString.match(regexp,''));
}

which is use to validate phone numbers (UK at the moment)

this works ok, but wont allow - (Dashes) which i need..

tried doing:

function telValid(inString) {
var regexp = /^[0-9 +-()]+$/;
return (inString.match(regexp,''));
}

View 2 Replies View Related

Regular Expression Replace.

Jan 20, 2007

I am finding it difficult to find a regular expression for following situation(replace)

a b c d = a,b,c d
a b c = a,b c

View 8 Replies View Related

Regular Expression To Get The File Name From A URL?

Feb 5, 2009

regular express to get the file name from a URL?

It has to be flexible in that the extension can be either 4, 5, or 6 chars (.php, .html, .shtml for example) and needs to cater for and whether querystring parameters exist too.

So, both

[URL]

and

[URL]

The regex should return newthread for both.

View 4 Replies View Related

Get Innerhtm Value Using Regular Expression?

Nov 13, 2009

I.E.:

---------------------------
Windows Internet Explorer
---------------------------
<EMBED src=http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1& width=500 height=200 type=application/x-shockwave-flash allowfullscreen="true" allowscriptaccess="always"></EMBED>

how can i get "src" value in above code using regular expression?

<object width="500" height="200"><param name="movie" value="http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="500" height="200"></object>

how can i get "src" value in above code using regular expression?

View 6 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved