Clearing Invalid Chars From A Value On Upload?
Jul 14, 2009
I'm making a small web app and I want to upload files on the server. Everything works fine, but what I want to achieve is to remove any special chars in the value name.My value name is 'NewFile'. I want to remove any special chars from the name before the upload process, ex.: remove things likeAll I want to keep in the string is small caps english letters (no etc.) and numbers. no spaces. I want to keep underscores and dashes too ( - and _ ).I can't seem to get it.That it what I used;
Code:
NewFile = NewFile.replace(/[^a-zA-Z 0-9]+/g,'');
I'm not very good in javascript, I took this code on the web.
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Dec 21, 2007
I have a Javascript which is to count the number of characters entered into a Textarea box and to prevent any more characters from being added after a certain number has been reached. Here is the code:
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Apr 29, 2010
I have following code, that i am sure can be done in 1 single function, which will ease extending it in future.
Basically when a link is clicked, i wante the upload form to apear....and any other upload forms to disapear.
How can i put those 3 functions in 1?
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Oct 28, 2010
What I'd to know is how to refer to characters from different charsets like Herbrew or Japanese characters simultaneously, as well as English and all others within the same script block.
E.g,
[code]
if ( xx[K]=="C" ) { N = 1;}
if ( xx[K]=="荐" ) { N = 2;}
[code]
note that I'm using notepad which would never accept the Chinese character shown and that code only represents my intention. I'd gladly use a html value like .
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Mar 5, 2010
I've got this php code
Code PHP:
protected function sanatizeInputValue($value)
{
$dodgychars = "#[|!"'$£%&/()=?^<>*+-]#";
[code]....
How can I tanslate this in js code I tried but with very poor result.
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Jun 27, 2009
i have the following code form counting the remaining words from a textarea which i took from the internet, but it does not work although i have adapted it to my page. i took it from this link : http:[url]....this is the java script:
<script type="text/javascript">
function textCounter(field, countfield, maxlimit) {
if (field.value.length > maxlimit) if too long...trim it![code]....
BTW, on the internet it was language="javascript" not type="text/javascript". Is this an old script or what?
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Jun 27, 2009
I took the script for a remaining chars script form this page at: [url] and i've adapted it to my page, but it does not work? I just cannot figure out why.
Here's the script taken from this site that works
And this is my script
javascript
And this is my html where i have the form3 with textarea and text input
The problem is that it does nothig. The value in the input text stays the same (125).
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Jan 1, 2009
I'm looking for a function that will convert non-ascii characters to unicode escaped string.For example, "あ" => "u3042".A similar piece of code is below. However, it convert strings to "\uxxxx" instead of "uxxxx". Changing "\" to "" in code below still won't work because that result in 'u' + 'xxxx' which print as "uxxxx".I have been searching for a few days already, and start wondering if this is at all possible. ; (
Code:
var unicodeEscape = function(str) {
var code, pref = {1: '\x0', 2: '\x', 3: '\u0', 4: '\u'};
[code]....
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Aug 2, 2010
I have a page working perfectly that passes up to 10-12k worth of data into a function via an 'onClick' event. That onClick is one of the <img..>'s attributes, directly. In case later that (dynamic) data gets larger, am I toying with potential problams because of some limit - either a limit in what can be passed into a JS function, or else a limit in the max num of characters allowed in an element's attribute(s)? What do you think is the reasonable amount that I can pass before things start to break? I may need to go up to 50k. 100k maybe, but I doubt that much.
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Aug 6, 2011
I'm kind of new to js, I wanted to write some non english chars inside an array, and it only seems to work if I write unicode notation, e.g. "u1234" per char. I was wondering if there is some easier way to do this, maybe somehow specify to the browser that the js file is utf8-encoded or something similar, but I'm not sure how to do that.
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Sep 1, 2010
I am looking for a upload form to upload pictures and then when the pictures are uploaded, then they get emailed to me. Kind of like a contact form but attached is the pictures.
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Jul 23, 2005
Code sample:
<script>
alert("")
document.write("")
</script>
Question: How can I force alert() to produce the same
result as document.write() ?
unescape() does not work.
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Sep 17, 2006
I have a textarea which the user can enter whatever text he chooses.
<TEXTAREA id=body name=body></TEXTAREA>
I would like to avoid supporting HTML tags in this textarea at the
moment, therefore I use the following HTML encode support:
Dim p_Body : p_Body = Server.HTMLEncode(Request.Form("Body"))
This works fine if I write text in latin characters (in English) - than
only the HTML tags are encoded.
But if I write text in other UTF-8 chars (e.g.: Hebrew) - all the text
is encoded, and it becomes unreadable.
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Nov 10, 2010
I'm sure this has been answered several times before, but I haven't been able to find a post that addressed this issue, so here goes. I'm trying to access a <div>s title attribute. Problem is, it isn't escaping the / character. So for example, if the title is "Emergency/Disaster" it returns "Emergency". I'm using $('#div').attr('title').
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Jan 21, 2010
I have textarea with id,id_cusipvalue. I am getting the value using the following
function$("#id_cusipvalue").val()
When I send this data as
GET url?+$("#id_cusipvalue").val()
All the new line chars get stripped. How can I retain the newline chars?
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Sep 3, 2010
I have run into a bit of a problem. If I want to set the html of an element via an ajax call but the content page has a peculiar apostrophe, it's sort of curved, not like a ' but a ’ (slight difference there) . When I view it in my browser it looks ok but if I try to get it via ajax all the ’ chars end up being question marks in black diamonds. How can I avoid this?
Umm and also could anyone tell me the origin of the curved type apostrophe? I feel stupid asking but I really am at a loss for what it is, I can't seem to actually make the character on my keyboard. I am thinking it could be Mac specific but that is a total guess.
[Code]...
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Mar 19, 2010
I want to remove special characters in form fields. It should be automatic. I have a name filed where user entering text and i not want special characters, it should remove automatic.
something like this i need,
onkeyup="javascript:this.value=this.value.replace(/[^0-9]/g, '');"
here, all non-digits get removed automatic.
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Jan 21, 2003
I need to limit the chars typed in a textarea to 160 (size of an SMS ) It works fine - as long as no one is copy-pasting text to it. Then my lil JS fails *boohoo*. So, could anyone help me out? Should I nail this to some other event than OnKeyPress or what?
[vbs]
function LimitText(fieldObj,maxChars)
{
var result = true;
if (fieldObj.value.length > maxChars)
{
result = false;
}
if (window.event)
{
window.event.returnValue = result;
}
return result;
}
Usage:
<textarea name="myTextArea" OnKeyPress="LimitText(this,160)">
[/vbs]
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Aug 8, 2009
JavaScript solution for show text statistic like this online-utility.org/text/analyzer.jsp
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Jul 23, 2005
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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Jan 30, 2011
I am sending a string to my server from my javascript program by:
function sendContext(){
try {
$.ajax({
type: "POST",
url: "http://localhost:50563/Myserver.svc/ReceiveInfo",
data: jsonContext,
[Code]...
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Feb 26, 2009
I need to convert various chars with place holders in JS which will be then converted back in PHP. My problem is that in my JS code, if I have this string sequence ",,," my JS code is only changing the first comma char:
Rather than what I want which is:
How can I get the JS replace function to operate on all occurences of a char (comma in this case) and convert them?
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May 19, 2010
I have a js counter which keeps track of how many chars are in a field on an asp form. When the user clicks a button further down in the form, the form generates more fields. This also causes the js counter to reset to its original value, as the page is 'reloading' in a way. How can I check this value and keep it the same when the user clicks this button?
I am including the code I have.
javascript
counter in code
button
I have tried
It compiles but the value remains reset.
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Jan 21, 2005
Ok, I am (still) trying to validate this form's username and make sure it contains no spaces and no special characters. I've been trying forever now... Can you point me in the right direction or get me out of this hole please? Code:
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May 30, 2007
I there a quick routine that removes trailing newline chars and carriage return?
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Dec 16, 2011
This plugin enforces max length on text areas and reports back the number of characters left to use.How would I add commas to the feedback message that says how many characters are left?
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