Extracting Part Of A String?
May 20, 2011
I have a bit of a problem and as my javascript is a rather poor I'm struggling to come up with a solution. Basically I need to split the variable "#country" into two parts and call the second half as the "this" value for '#int-dc'. Using '+' as the start point end ending at the end of the string.
For instance 'this' returns 12+44 I want to split it to "12" and "+44" the latter (+44) replacing 'this' in the code below.
$(function() {
$("#country").change(function() {
$("#int-dc").val
($(this).val());
});
});
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Jun 15, 2011
I need to extract a particular part of a string:
var str=(document.images('flag').src);
<img id="flag" src="../../../../img/ip/041-080/049p.png">
I only want the "041-080/049" part.
It needs to be read from the right, not the left because the preceding left part will vary in length.
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Jun 6, 2010
How can I write a code that would extract all information after @ for example
[URL]
I want to extract "yahoo.co.in" when the email address is entered. Any thing after @ I want to extract.
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Aug 12, 2010
I have a records that come from a database.
My string, wich is "{module_webapps,5007,l,1}" returns the following:
Code HTML4Strict:
<a href="http://..." title="title"><img src="http://..." height="" width="" /></a>
All I need is the actual img src url, like:
Code HTML4Strict:
http://...
Is there a way to pull the image url from the string with Javascript?
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Dec 8, 2009
From this string: "(EVAL)(H:somestring)Other Text here"
I need to extract (H:somestring) and somestring into variables where somestring will could be and set of characters. Below is not working.
<script type="text/javascript">
var x = "(EVAL)(H:pines)Some other Text here";
alert(x.match(/H:(.*?)/g));
</script>
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Jul 31, 2009
I want to store four cookies -- the name, the date the cookie was set, and the user's preferences for background color and foreground color. The name is set to John, the date set to 03-28-2005, the background color is set to red, and the foreground color is set to green.
Question 1: What is the entire cookie string (or name-value pair) returned when John visits the webpage?
Question 2: What code to use to extract the four values from the cookie string? The code should be written in a way that these values can be extracted wathever the order they appear in the cookie string.
Question 3: Why is it a good idea to store the date that the cookie is set? How is this information be useful?
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May 26, 2009
I have this code:
function getLocation() {
var siteurl = document.location.href;
document.write(siteurl);
}
I want to extract from string etc. [URL] this part:"/page1/page2".How I can do it?
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Feb 17, 2006
i have an expression, say "5*7 + temp". i have an algorithm that finds out that "temp" is undefined in that expression. now i need to change the color or background color of "temp" to show that it is undefined.
i know which position the "temp" is, but i dont know how to change the color of it.
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Mar 17, 2011
I have:
<div class="date">21-Mar-11</div>
I would like to select only the 21 and then only the "Mar" and replace the content of the div with "Mar 21," or something along those lines. The output is not the problem. I need selecting specific parts of the string. So I want to learn more about selecting specific parts of strings.
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Jun 10, 2011
I'm trying to grab a specific part of a string of text and am wondering how to do it (or if it is possible to do it) with a jQuery selector.Is there any way to get that specific part of the link?
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Apr 12, 2011
How can I split a string like this:
IE, Firefox, Opera, Chrome, Safari
I want the string to be splitted after each ,
Then I want that each splitted part is placed in a variable, preferable in an array, so I can loop through the array with an foreach or something.
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Jul 23, 2005
Scenario: you enter "foo bar" into a text field... Is it possible
through javascript to select/highlight just "foo"?
formObject.select()
selects all. I need to select only part of the string.
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Feb 22, 2006
I am developing an application which allows a web site visitor to email a page to a friend using the PHP mail() function.
What I would like to do is dynmaically extract the H1 from each page using JS and store this as a PHP session named title. Can I get this info using JS?
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Oct 30, 2006
I'm slowly discovering the world of JavaScript, so I'm not sure I'm
attacking this problem in the right manner, thus if I'm in the wrong
newsgroup, my apologies.
What I'm trying to do is extract some news items from a web site. To
do this, I'm using Microsoft Word VBA and using the following bit of
script:
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Jun 2, 2007
I found this little script for extracting parameters from a url but wondered
what the shortest and most efficient way to do it would be, like the
following or via regexp?
function getParameter(paramName) {
var currentUrl = window.location.search
var strBegin = currentUrl.indexOf(paramName) + (paramName.length+1)
var strEnd = currentUrl.indexOf("&",strBegin)
if (strEnd==-1)
strEnd = currentUrl.length
return currentUrl.substring(strBegin,strEnd)
}
Any shorter way?
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Jul 23, 2005
Is there any method to extract both the images (with and without
mouse-over) from a web site.
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Jan 18, 2011
What will be the best way to extract dynamically changing information from a web page that holds XML?I have to extract some data from multiple web pages.These sites contain XML code that dynamically reloads (and changes) parts of the page.Since only small parts get a refresh (perhaps 200 bytes every 5 seconds) it wouldn't be efficient (and also might lead to negative reactions from the server) to reload the whole page (about 40k) every time.How could I best determine these updated contents and send them to the program that further processes them?I am familiar with several programming languages but unfortunately have very little knowledge of internet programming.
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Sep 17, 2010
I'm trying to get some average rgb values from an image in one canvas object and apply them via fillstyle to a rectangle in another canvas object.I have a dropdown that loads an image onChange()="ChangeBaseWood()" into a canvas object. The second canvas object is to be filled with an average color based on the content of the first canvas onClick="GetBaseColor()". For simplicity I've replaced the for loop with just the values of pixel 0,0. Where I think I am assigning the rgb values, the error console keeps reporting that var sample is undefined at the line "var redpart = sample[0].
function ChangeBaseWood(){
var dropdown = document.getElementById('woodvalue');
var woodcanvas = document.getElementById('basewood');[code]....
I've tried various things to assign the redpart,grnpart and blupart but I'm missing something basic.
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Jun 9, 2009
I'm trying to write code that will extract from an XML file and then display the results. Keep getting a syntax error.
HTML:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>[code]....
My intention was to access all of the tags (name, genre, and hitsong) in the XML file. Thought that var musicianInfo = xmlDoc.getElementsByTagName("*"); would do that. Then, loop through each tag and display the result.
Why isn't it working?
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Feb 26, 2011
I am having trouble with retrieving data from an xml file Here is the code I am using can anyone tell me where my problem lies?
[Code]...
as I am very new to Javascript and AJAX I am not very familiar with the process yet and I have not been able to get the xml loaded. Obviously I am declaring this all wrong as I receive the error that load is not a function of xmlDoc!
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Aug 17, 2011
This randomising function is like a coin toss, it gives a numerical result and displays it:
function Ran() {
var c = Math.random();
return (c < 0.5) ? [0, show0()] : 1, show1()];
}
I want to extract the numerical outcome, 0 or 1, from this and from two other similar functions, sum them, and then run more functions based on the possible sums.
What is the syntax for getting to the numbers? something like
var n = Ran().[0] ?
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May 25, 2011
I have a simple form that puts the info into cookies. I then need to check the entered name against the cookies, to see if they are the same. Currently there does not seem to be any cookies to check against, becuase my window.alert comes up blank. Please look over my code and see if you can spot the issue:
Code:
function getCookieData(labelName)
{
var labelLen = labelName.length;
var cookieData = document.cookie;
var cLen = cookieData.length;
[Code]...
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Apr 19, 2010
I am trying to extract the domain name from a url using javascript but having some problems.
This is what I have:
Code:
var publisherName = document.domain;
if(publisherName.indexOf('www')){
publisherName = document.domain.substr(3,document.domain.length);
}
But it is not working and I am not sure how to rid of the extension Basically, this is what I want: Whether the location being sub domain or not it need to get from somthing similar to[URL]...
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Jul 20, 2005
I'm loading an xml data file and then trying to take a particular node
and add it, as html, to an element on my page using inner HTML. The
xml is like what is below, with the . Code:
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Jan 21, 2011
I want to parse data from tables in webpages , there are no problems when I parse regular HTML tables, but it seems to be impossible to get any data from dynamic pages that update themself automatically.how to extract data from dynamic web pages? My goal is to read webpages with an application written in java, parse the page and clean the data and store it in a database.
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Dec 11, 2003
I have following css code in a html file:
<style>
.myClass { color:red; }
</style>
How can I extract the value of the property "color" from the class "myClass"?
Pseudo-code (which of course doesn't work), so you get the idea:
<input type="button" onclick"alert('The CSS color is '+document.style.myClass.color)">
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