Check If Form Field Exists And If It's An Array
Sep 5, 2007
I want to validate a form. In the form is a text field named 'extra[]' where the user inputs a number. The number is what I want to validate.
However, the 'extra[]' field is dynamic and does not always appear in the form.
If it appears, there may be only 1 occurrence of it which means it's then not an array but there may also be multiple occurrences of it.
I have a script that validates (and work as it should) if the 'extra[]' field occurs multiple times and is thereby an array, but I can't figure out how to validate the 'extra[]' if there is only 1 and to not throw an error if it's not there at all. Code:
View 3 Replies
ADVERTISEMENT
Oct 21, 2010
I have declared a javascript array:
Code:
var strUsersName = new Array("John","Mac","George");
I want to check, if the particular loggedin user for example Mac is available in the array list declared.How to check in a efficient way, if the particular user loggedin is available within the array declared.I tried this, but I am not sure, if it is correct:
Code:
var strUsersName = new Array("John","Mac","George");
var L=strUsersName.length;
[code].....
View 1 Replies
View Related
Mar 15, 2011
have an array of objects which is gAllMedicalFilesClaimantsArray which has 2 properties (UserID & UserInfo).
For example:
gAllMedicalFilesClaimantsArray[0].UserID = 111;
gAllMedicalFilesClaimantsArray[0].UserInfo = "AAA-123";
gAllMedicalFilesClaimantsArray[1].UserID = 222;
gAllMedicalFilesClaimantsArray[1].UserInfo = "BBB-333";
What is the fastest way to check whether a specific UserID exists in the array using Jquery or Javascript because gAllMedicalFilesClaimantsArray has got 8000 records?
View 1 Replies
View Related
Sep 23, 2011
Im trying to pass fields to a javascript function that will check the value of each field and it its empty then it will turn the field color red which is what its doing at the moment, but i want to be able to use this function globaly through out my project, so is there a way of not saying how many fields go in to that array, it will just deal with the amount of fields it gets passed?
View 8 Replies
View Related
Aug 4, 2011
I have a textbox for entering URL. I validate that URL using regular expression. Now the problem is, How do i know whether the entered URL is exist or not.?For example, if user enter "http://www.daniweb.cam" rather entering "http://www.daniweb.com", how do i intimate them that the entered url is not valid.?
View 1 Replies
View Related
Feb 6, 2009
Using Javascript I need to figure out how to check if a URL actually exists. The problem is that the Javascript file may not always be there so I have I have to check every time I need it.
AJAX is not an option AND its has to cross browser compatible.
*NOTE The URL will always be pointing to a Javascript File
[Code]...
View 3 Replies
View Related
Sep 21, 2010
I'm trying the figure out how to check if a id exists.
I have tried this;
if(document.getElementById("theID")
Then do this
But that doesn't seem to work.
All I want to do is if it doesn't exist then don't run the function.
View 5 Replies
View Related
Jul 19, 2010
I need to verify that the email address is not a free account. I will have an array that contains a list of free email providers. ie. gmail yahoo hotmail.I want to compare this list to what the user entered. and if there email address contains one of the values from the array then return false. I am a php dev so excuse the crude code.
Code:
var freeEmail=new Array("gmail","yahoo","hotmail");
if (form.email_address.value (contain a value from freeEmail) {
alert( "Please no free email accounts." );
[code]....
View 3 Replies
View Related
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.
View 11 Replies
View Related
Apr 13, 2006
How do I check if an object exists in Javascript?
EG:
if (document.getElementById("product").value == null)
{
prodValue = "";
}
else
{
prodValue = document.getElementById("product").value;
}
This gives me an 'object required' error...
View 9 Replies
View Related
Jul 2, 2011
I'm using ccs3PIE with my site. What I want to do is check if a DOM element has a css property like border-radius and then add a class to it.
The problem I'm having is that I don't know how to check for the css property. I've been searching for it for a couple of hours now and I can't find anything that seems to work.
View 2 Replies
View Related
Aug 31, 2009
I found out how you can check if an array value exists but I can't seem to get it to work with the options array for some reason.
how I can find out if a certain select value exists?
View 8 Replies
View Related
Sep 7, 2009
I'm not entirely sure this is possible. I hope it is, and it doesn't seem to far-fetched or impossible.
With JS, how would one go about checking if a user has DivX Web Player installed?
Usually people put in code within the embed, so if it the player doesn't load, it would have the message behind stating the fact. However I haven't seen this used at all with DivX, instead, you see pop-up boxes, whether installed or not, stating "Don't have DivX Web Player? Get it here for windows or mac"
I find this extremely annoying, and would never want such informalities on my website.
View 5 Replies
View Related
Mar 30, 2010
If I have a form like so:
<form>
<input type="text" />
</form>
[code]....
View 11 Replies
View Related
Nov 26, 2010
One holds the form and the other the php Query process.Im using a small piece of javascript to POST the value to my php Query process scriptbut im finding it difficult to display a result by fading in a div based on the query response.For example if i type in a tag and the tag already exists i want the php to check the table and the return a faeIN div to say it "already exists" otherwise fadeIN a div to say "Tag inserted into database"But i also am using a little more JS to clear the input field value as well.All this is done without reloading the page.So basically if the tag "People" exists in the MYSQL table then i want the div #i2 to fade in and say "Already exists!"My code is below:The HTML
<form method="post">
<div>
<strong>Keyword: </strong> <input type="input" id="tag" name="tag"/> <input type="button" id="send"
[code]....
View 9 Replies
View Related
Dec 17, 2005
In my page templates, which are included on every page, I have some javascript that is necessary to create some effects. However a couple of pages do not require the javascript, and because of this the page elements are not present. How would I add a check to ensure the element ID exists before running the javascript code? In other words, here's the code in question:
Code:
var thevar = document.getElementById("theid").getElementsByTagName("LI");
Is there a conditional that can be wrapped around that to prevent the javascript code from running if no elements named "theid" exist?
View 2 Replies
View Related
Jan 29, 2006
I am having troubles finding a way to use JavaScript to see if a file exists before an ASP file upload script runs. Is there an Exists check for JavaScript? I thought I found an ObjectName.Exists but doing this did not work.
View 6 Replies
View Related
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]....
View 1 Replies
View Related
Aug 4, 2007
I have an image validation script that im working on. This is what i have so far...
<script type="text/javascript">
<!--
function validate_form ( )
{
var imgcheck;
valid = true;
if ( document.editavatar.avatar.value == "" )
{
alert ( "Please Enter an Image Url!" );
valid = false;
}
return valid;
}
//-->
</script>
How can i add to that so that it checks if the avatar field has the words png, jpg, gif and bmp, and if it doesnt, valid will be false. So in other words, if it does contain png, jpg etc it will return valid.
View 3 Replies
View Related
Aug 18, 2010
I have some problems with validating form in javascript.
I have a following HTML code:
What I want in validation is to check all the field in form (check for required fields etc). I want to show user error message in div tag with id='poruka'.
Part of code of function ValidirajFormu:
So, validation works OK, but message is not written in div tag. Only if all fields are correct, form is submited, but there are no error message.
View 4 Replies
View Related
Jul 20, 2005
is there any way to check if any textarea or textfield exists in current
document
fg
function checkifexist(){
if any textarea or textfield exist return true
else return false
}
Barti
View 2 Replies
View Related
Mar 15, 2010
I have a jquery dialog with a registration form in it. My problem is: I want to check if the username (input) already exists in the database, if so I want to return a error.
I know I have to use AJAX... but how?
Explanation of my form:
(this is a dialog)
My form:
Username: testuser ERROR: username already exists
Password:
Name:
[Code]....
View 1 Replies
View Related
May 14, 2011
Let me explain the issue which I'm facing with an example.My URL is http://localhost/~gaurav/dstreetmantra/register.php.One of the anchor tags in my navigation bar is <a href="register.php">Register</a>.The code needs to be able to check whether the value in this very anchor tag's href attribute is present in the URL.If it is present, the word 'Register' register would be highlighted. If not, some other link would be highlighted.As I said, I'm doing this for the navigation bar. This way, it'll check which of the links' 'href' value is present in the URL, and thus highlight that link.I'm assuming this can be done using Regex, but I do not know how to use it.
View 4 Replies
View Related
Nov 9, 2009
I'm making a table that is dynamically populated from XML data. One of the columns refers to an XML tag that is NOT required (hence the tag does not exist in every XML entry). How do I write a statement (if, else, or any other?) that says - check for the tag, if the tag exists, write the tag's data, if the tag does NOT exist, write "n/a".Here's the code:
[CODE]
<script type="text/javascript">
if (window.XMLHttpRequest)
[code]....
View 1 Replies
View Related
Sep 12, 2011
Can I detect if 1 or more sessions of a website are open?
for example, if a session with port 7005 is open like this one below, then I want to assign the next port to this user in the second window of browser
http://90.97.8.0:7005/maximo/webclient/login/login.jsp
the next IE window should appear like this:
http://90.97.8.0:7006/maximo/webclient/login/login.jsp
or
http://90.97.8.0:7007/maximo/webclient/login/login.jsp
View 2 Replies
View Related
Oct 11, 2006
I am trying to find a way to search to see if there is a specific file located in the current directory on the server. If a folder contains file1.txt or file2.txt and depending on which file is in that folder change a certain javascript variable. What it comes down to is, is there a way to search for specific files on the server and limit that to the current directory/folder.
View 12 Replies
View Related
