Checking For Existing Strings In Cookies?
May 24, 2011
I have a form that puts all the inputs into cookies, then submits it's data the cookies. I am doing this because i need to be able to check for already existing names, so a person gets an alert if they try to register twice. The cookies and submitting all work fine, but i am having trouble correctly writing the code to check the cookies for the name the user is attempting to submit.
here is what I have:
See if the entered name already exists
function checkName ()
{
var cookieString = decodeURIComponent(document.cookie);
var userName = cookieString.substr(cookieString.indexOf("name=")";");
[Code]....
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Nov 2, 2010
I was looking in the firebug debugger and noticed that my main .js file was somehow being called twice, but I don't see where. There are dozens of files involved in this particular problem, so I think the best way to go about solving it is to test - in run time - if my js file is already in place on the page, do nothing - otherwise call it. This is pseudo that I have monkeying around with but it's not working.
Code:
function checkFile() {
var fileExist = new fileExist();
fileExist.onLoad = isPresent;
[code]....
I thought this would work, perhaps it's because of an argument I need to pass in to checkFile(ZYX) but not sure.
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Oct 18, 2006
I have seen quite a bit posted about this, but nothing related to the different levels of privacy in Microsoft Explorer 6.0 under the internet options. I am using the script below to determine if cookies are on, but it looks like it only works if the settings are "Accept all cookies" or "Low". The default is "Medium" and the script fails at that setting or above. Do I have to require that the setting be higher than medium to use this code?
document.cookie = "TemporaryTestCookie=yes;";
if(document.cookie.indexOf("TemporaryTestCookie=") == -1) {
alert("Cookies are required to use this web site!
Please click the link at the bottom of the page
and review how to enable cookies! ");
}
else {; }
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May 28, 2003
Just wondering if anyone can show me the javascript code to check if cookies are enabled on their browsers such that I could have it redirected to another page if cookies are not enabled?
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Sep 25, 2007
I've been learning javascript for about a week and I'm really struggling right now. This is a homework assignment to help in learning loops and arrays.
What I want to happen is when a form button is hit it will replace the array from the one previous instead of just adding to it. Hopefully that makes sense. What do I need to do? here's my code....
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Feb 3, 2006
I'm having difficulties arithmetically manipulating form element values.
I've entered data into the form, and I fetch them using a js, as:
p7Left = Number(document.form1.elements["p7_left"].value);
p7Right = Number(document.form1.elements["p7_right"].value);
...
...
scoreLeft = Number(document.form1.elements["left_score"].value);
scoreRight = Number(document.form1.elements["right_score"].value);
Then I add these as follows:
scoreLeft = Number(scoreLeft + p&Left + ...... +);
This does what I want; without the operator 'Number' I get a concatination
of the various variables (as expected). Is there some way of globally
defining all variables as numbers instead of strings?
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Mar 6, 2007
Safari and FF seem to allow this:
var wiggy = "ABCD";
ch = wiggy[2]; // ch will contain the character 'C'
however my JS book seems to insist that I do this:
ch = wiggy.charAt(2);
and indeed doesn't appear to mention the first method at all.
Since for my particular purpose I want to treat the string as an array
of single characters, I prefer the first method rather than the second.
Is there any reason not to pursue this approach?
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Apr 16, 2007
I have two strings that I need to compare and modify when there is a
matching value in the two. If strA = ??,' then I need to remove
the value ??,' from strB and the new value would be strB =
??,12935'
strA = ??,'
strB = ??,12937,12935' (these could be any values in any order)
I'm not sure where to begin on this.
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Nov 13, 2007
I need a script that will get a query string and return it's value.
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Nov 2, 2005
I was wondering if someone would be so kind as to help me out in understanding a few things about sending a variable through a URL..
firstly:
i have two pages on page1.html i have a link which is:
window.location = "page2.html?name=yournamehere";
on page2.html how how would i be able to access the variable "name" ?
i know the following code works for strings, but i want to be able to directly access the variable that has already been assigned a value.
function parse(){
var Loc=this.location.toString();
var URLarray1=Loc.split('?')[1];
}
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Jun 15, 2007
i have three vars, year,month and date.
i want it in format year-month-date.
ie, for ex, 2007-6-6.
i tried it this way but it subtracted and give the value as 1995.
var str=year+'-'+month+'-'+date;
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Sep 29, 2011
I want to write a reg exp that replaces strings matching "A anystring" or "An anystring" or "The anystring" with "anystring", basically removing the articles at the beginning of the strings. I got as far as this:
But didnt know how to continue.
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Feb 15, 2006
How would I put 2 strings like this into 2 separate arrays like my
examples below?
Div10,Div11|Div2,Div3,Div8,Div4,Div12,Div1,Div5|Di v3,Div5,Div9
France|Germany|Norway
var DivOrder = new
Array("Div10,Div11","Div2,Div3,Div8,Div4,Div12,Div1","Div3,Div5,Div9");
var DivNames = new Array("France", "Germany", "Norway");
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Apr 19, 2006
Code:
a = document.createTextNode("< somestring >");
....will transform < into < and > into >
When I want to read that node later, I can only get it back in
this form: "< somestring >"
Is there a function that transforms such strings containing
HTML codes back to normal strings? Something like:
string deHTMLize (string);
What I need is to quote and send a part of the document when
user clicks a button, so I need the string without codes.
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Jul 27, 2007
1) To populate a dropdown control that's on a page with data coming
from the database, the developers concatenate all the values separated
by a pipe character and pass the string to the JS function, which
splits the string and adds the values to the dropdown control.
I think this is not a best practice b/c:
A) If the data returned from the database results in a string that's
too long, it could exceed the limit of the JS string type and some
items would be missing from the dropdown.
B) If by any chance, the data from the database contain pipe
character, it would result in extra elements inserted in the dropdown
control.
Is there a better way to pass data to JS w/o relying in strings? How
can these practices be improved?
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Jul 20, 2005
i got this javascript-function that changes the entries of a selectbo
depending from the selection of another selectbox:
function changeBezug(selectedEntry, '$exhibits', .....) {}
the string '$exhibits' holds all the entries for the option Entry i
the first selectbox;
Unfortunately i get javascript error unterminated string literal an
the error pointer points at the first apostroph:
function changeBezug(selectedEntry, '
I tried replacing all special chars in $exhibits, even putting th
string directly into the function code with php and tried using quote
instead..
Now im out of ideas!
Maybe im using the wrong replacement for the apostroph...
i use ' is that wrong? i also tried ' to no good either..
what's the right one?
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Jan 11, 2012
If the element i'm getting has an attr that contains string like this....
<span names="Joes|Joe's">Joes|Joe's</span>
When we get the contents of attr st, there is an error because of the ' in they're.
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Jun 16, 2009
the title says it: is it ok to pass strings with spaces trough url? i tried it and it seems to work, but it also seems to me that more correct way to do it is to use '+' instead of space since that's what php get method does. i'm using window.location to redirect to another page.
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Sep 20, 2009
I'm trying to convert a string based on the contents of another string. For example, I have two strings - "Purple" and "Orange" and a variable "P" - I want the script to look at the word "Purple" and everytime is sees the letter "P", assign this to a third variable (result variable) - if the letter it's looking at is not a "p", I want it to take that character from "Orange" and add it to the result string. So the result would be "Prapge". This is the code I have so far, and it doesn't work, absolutely stumped as to why ...
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Oct 2, 2011
I have this code for HMTL5 Canvas, however this is a JavaScript directed question not a Canvas question.
<script type="text/javascript">
var c=document.getElementById("myCanvas");
var cxt=c.getContext("2d");
cxt.moveTo(0,400);
cxt.lineTo(50,a);
cxt.lineTo(100,b);
cxt.lineTo(150,390);
[Code]...
That will draw a line graph, however I want to get the coordinates from a variable in the URL. So it may be example.com/a=500&b=600 . How would I retrieve these two variables and then insert in to they're respective places?
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Nov 15, 2009
I want a person to enter a string value in a javascript program.Example: Choose Rock, Paper, Scissors.Person: Rock.What is the code for a program to take in strings? Like parseInt andd parseFloat are for numbers. What is it for strings?
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May 10, 2010
This function (full Code)...
Look at the 'Prev. Rank' column. How do I tweak this code so that the blank spaces are always on the bottom?
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Feb 26, 2011
I'm post submitting a tabular form, the rows are like so
Code:
<tr>
<td><input type='checkbox' name='checkbox[]' value='x-y-z'></td>
[code]....
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Sep 2, 2007
Is it possible to sort outer and inner strings at once? The sorted output should look like the following:
<category>Bars</category>
<name>Alpha Bar</name>
<name>Beta Bar</name>
<category>Cafes</category>
<name>Ara Cafe</name>
<name>Zeta Cafe</name>
Categories and names are both properties of one and the same array element.
I have the following compare function to sort the outer categories.
function compareCats(a, b) {
a = a.category;
b = b.category;
if(a == b) return 0;
else if(a b) return 1;
else return -1;
}
This is working fine. But I really would like to include the inner names in the compare
function without changing the structure of the array - if it could be possible. If not - what would be an efficient way to solve the problem?
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Jul 27, 2011
i have the following code:
var myHeight = $(".sidebar").outerHeight(true); /* returns Height */
alert(myHeight); /* returns an integer e.g. 500 */
var addPixels = "px"; /* String variable with value "px" */
$(".text").css({"padding-bottom":myHeight}); /* myHeight = 500 NOT 500px */
[Code]....
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Jun 16, 2009
I have the following code, which I am trying to pass in 5 variables.
<script type="text/javascript">
$(function(){
$('#DrainStackDiameter').change(function(){
[code]....
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