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  • When (and why) is {} undefined in a JavaScript console?

    - by JS_Riddler
    In the console of both FF and Chrome, {} is considered undefined until explicitly evaluated: {}; // undefined ({}); // ? Object Actually, it's a bit less defined than undefined -- it's apparently bad syntax: {} === undefined; // SyntaxError: Unexpected token === {}.constructor; // SyntaxError: Unexpected token . But not if it's on the other side, in which case it's fine: "[object Object]" == {}.toString(); // true Or if it's not the first expression: undefined + undefined; // NaN {} + undefined; // NaN undefined + {}; // "undefined[object Object]" What gives?

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  • Bash intercepting wildcard in script

    - by MrRoth
    I am using Bash script to read line by line from a text file, which has special characters in it (regular expression). When I use echo "${SOME_VAR}" it does not display the text as is. I am familiar with Prevent * to be expanded in the bash script. How can I display and use the text as is? UPDATE The text (TSV) file holds tuples similar to (the last entry is a psql query) bathroom bathroom select name from photos where name ~* '\mbathroom((s)?|(''s)?)\M'; I am reading the CSV as follows: tail -n+2 text.file | while IFS=$'\t' read x y z do echo "${z}" done which gives the output select name from photos where name ~* 'mbathroom((s)?|(''s)?)M'); note that the '\' is missing

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  • jQuery. Treat a string as a HTML document?

    - by James Jeffery
    I'm not sure if I worded the title correctly. Basically is it possible to treat a string as HTML as if it was on the page? So I can use $("#elem") and all the other jQuery functions? The HTML is loaded into a string from an ajax request and stored in a string. Instead of using regular expressions to access the data needed is it possible to use jQuery functions? ajaxTextResponse.$("#telephone"); I know the above won't work, but you see what I am getting at. Thanks

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  • Why RichTextBox lose format after appending new String?

    - by user556526
    Hi guys I have aproblem with rich text box string color: I have the richtexbox that user type a message in it. I mark up each word that exist in my dictionary. I use this code for it: this.inputTextAreaRtb.Text=this.inputTextAreaRtb.Text.Remove(startCoordinate, endCoordinate - startCoordinate); this.inputTextAreaRtb.SelectionStart = this.inputTextAreaRtb.Text.Length; this.inputTextAreaRtb.SelectionLength = 0; this.inputTextAreaRtb.SelectionFont = new System.Drawing.Font( "David", 12, FontStyle.Underline); this.inputTextAreaRtb.SelectionColor = Color.DarkBlue; this.inputTextAreaRtb.AppendText(_word); this.inputTextAreaRtb.SelectionColor = this.inputTextAreaRtb.ForeColor; this.inputTextAreaRtb.SelectionFont = new System.Drawing.Font( "David", 12, FontStyle.Regular); But each time if I already marked up a word a loose formatting of words that already formatted. Any ideas of this problem?

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  • Scrool Bar - Help

    - by 3gwebtrain
    Hi, any one can help in this?, i want to make a scroll bar to scroll the li underneath a div. in which i made a ui, scroller, but client want the front and back arrow to adjust the slides. like regular scroll bar like browser. please visit ; http://ikeafamilylive.com/stories/60 and you will witness what i request. And please don't recommend me a plug-in, because i need to use this scroll bar across the site with several customization process. please give me the sample code / suggestion to make a scroll bar using jquery+css. with full functionality.

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  • PrivateFontCollection fails on appharbor

    - by grennis
    I am trying to load a custom font (ttf file) and draw into an image with the Graphics object. This code runs fine locally: PrivateFontCollection fonts = new PrivateFontCollection(); string path = context.Server.MapPath("~/App_Data/Futura LT Bold.ttf"); if (!System.IO.File.Exists(path)) { throw new InvalidOperationException("Font file is not deployed: " + path); } fonts.AddFontFile(path); However when run on appharbor, the call to AddFontFile fails with the exception: System.ArgumentException: Font 'Futura LT Book' does not support style 'Regular'. at System.Drawing.Font.CreateNativeFont() at System.Drawing.Font.Initialize(FontFamily family, Single emSize, FontStyle style, GraphicsUnit unit, Byte gdiCharSet, Boolean gdiVerticalFont) at System.Drawing.Font..ctor(FontFamily family, Single emSize) at LumenboxWeb.Controllers.GalleryController.FontTest() in d:\temp\h5oqslma.udd\input\src\LumenboxWeb\Controllers\GalleryController.cs:line 59 at lambda_method(Closure , ControllerBase , Object[] ) at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) I have tried different fonts, and they all work locally, but none work on appharbor. Is it possible to load fonts dynamically on appharbor?

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  • JQUERY: Multiplying input elements select box and radio boxes and hidden inputs

    - by Andrew Tan
    Evening, I'm tyring to multiply different input elements but for some reason it's giving me a NAND error. As the user selects, check or modify the values of any element. This should change the total amount. http://jsfiddle.net/aQ5K8/ <select name="select"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> </select> <input name="radio" type="radio" id="radio" value="10" tvalue="100" /> <input name="radio" type="radio" id="radio" value="20" tvalue="200" /> <label id="Total"></label> Also if you take a look at the jsfiddle code i have tvalue=100 and the other is =200 as a custom attributes, how would I access that instead of accessing the regular html value. Thank you.

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  • Bind web user control property in markup

    - by Ian Levy
    I'm sure it's elementary but I can't figure it out. This does not work - the the binding expression is passed as string to the control: {<uc:usercontrol runtat="server" message='<%#Me.protectedVariable%>'/>} The code behind include a Page.Databind() call in page_load. But this does work: <uc:usercontrol runat="server" id="usercontrol1"/> And in code behind page_load: usercontrol1.message = Me.protectedVariable Do I have to bind from the code-behind? Is this a page life cycle issue?

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  • How to change the text of the multiple asp:label using for loop in C# ASP.NET

    - by Minelava
    I want to change the asp label multiple times. Here is the asp.net code <asp:Label ID="lbl_Text1" runat="server" Text=""> <asp:Label ID="lbl_Text2" runat="server" Text=""> <asp:Label ID="lbl_Text3" runat="server" Text=""> <asp:Label ID="lbl_Text4" runat="server" Text=""> Instead of using this: C# Code lbl_Text1.Text = "hello"; lbl_Text2.Text = "hello"; lbl_Text3.Text = "hello"; lbl_Text4.Text = "hello"; I tried to use for loop for (int i = 1; i <= 4; i++) { lbl_Text[i].Text = "hello"; } And I get this error..... cannot apply indexing with [] to an expression of type 'system.web.ui.webcontrols.label' Is there anyone can help me on that?

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  • Form submission and hyperlinks using GET and POST

    - by Jon
    I have a search resource, the user can perform searches by filling out a form and submitting it, the create action is called, the Search is saved, the show action is called, and the results are displayed. This all happens with the default POST, and all works fine. The user may want to save his search in the saved_search table (i don't use the Search table for this purpose as this table stores all searches for the purpose of compiling statistics, and gets cleared on a regular basis). Once the Search is saved, it can be re-run by clicking a hyperlink, this is where i start to get problems. I see no way of getting my hyperlink to run the create action of Search, with a POST request, and the necessary data. I then decided to try to get both form submission and the hyperlink to perform a search using a GET request, i was unable to get form_for to run my Search create action using a GET request, it always seems to get routed to my index action. Can someone suggest a good restful solution to this problem please. Many thanks

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  • Scroll Bar - Help

    - by 3gwebtrain
    Hi, any one can help in this?, i want to make a scroll bar to scroll the li underneath a div. in which i made a ui, scroller, but client want the front and back arrow to adjust the slides. like regular scroll bar like browser. please visit ; http://ikeafamilylive.com/stories/60 and you will witness what i request. And please don't recommend me a plug-in, because i need to use this scroll bar across the site with several customization process. please give me the sample code / suggestion to make a scroll bar using jquery+css. with full functionality.

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  • eclipse + multiple checkouts of version-controlled projects

    - by Jason S
    We're using eclipse and svn. We keep the .project file in version control. The problem is, if you have more than one checked-out project (e.g. a trunk checkout and a feature branch) and would like them both to be available in Eclipse, you lose, because the .project files are identical and therefore can't both be imported into Eclipse. What's the right way to deal with this? (I'm mostly having to deal with this in TI's Code Composer v4 which uses an older version of eclipse, but I'm also going to need to do this in the regular Eclipse)

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  • Interesting or unique types encountered?

    - by user318904
    What is the most strange or unique type you have seen in a programming language? I was thinking the other day about a "random variable", ie whenever it is evaluated it yields a random value from some domain. It would require some runtime trickery. Also I bet there can be some interesting mapping of regular expressions into a type system. It does not necessarily have to be a built in or primitive type, but some random class that implements a domain specific type won't really be interesting just unique.

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  • C input loop for shell

    - by AustinM
    So I'm working on creating a very simple C program that just preforms shell commands. This is what I have so far: #include <stdio.h> int main() { char input[30]; fputs("$ ", stdout); fflush(stdout); fgets(input, sizeof input, stdin); system(input); } It works, but only for one command. For example if I compile and type ./cmd I get the $ prompt. If I type ls I get what I'm supposed to get. But then it exits and goes back to the regular system shell. How can I make it so after the user types a command it goes back to the "$" input.

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  • C++ offset of member variables?

    - by anon
    I have: class Foo { int a; int b; std::string s; char d; }; Now, I want to know the offset of a, b, s, d given a Foo* I.e. suppose I have: Foo *foo = new Foo(); (char*) foo->b == (char*) foo + ?? ; // what expression should I put in ?

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  • Apache RewriteRule not rewriting as expected

    - by Jeff
    Can you any one see anything wrong with the following apache rewrite rule: This is in my .htaccess file inside a folder called "text" a subdirectory of localhost/lombardpress I have the following rule Options +FollowSymlinks RewriteEngine on RewriteRule ([^/]+) /textdisplay.php?fs=$1 [NC] I was expecting this input: http://localhost/lombardpress-dev/text/lectio1 to rewrite to this: http://localhost/lombardpress-dev/text/textdisplay?fs=lectio1 But instead I get a 404 error. The requested URL /textdisplay.php was not found on this server. It looks to me like the RewriteRule has re-written the address but not as I intended - so there must be something wrong with my regular expression. Let me know if I can provide further information.

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  • How to represent datetime of different time zomes in C#

    - by Mohoch
    I have a .NET WebService (written in C#), that is supposed to serve people around the world. With each request I get the user's datetime in his own time zone with the format : yyyy/MM/dd HH:mm ZZZZ. I have to convert the string to something representing the original date and time and specifying the time zone in GMT. I have to make some logical calculations and keep it in the database. The regular DateTime doe's not support this. it does not have a property specifying the time zone. When I try to convert my string into DateTime - it simply converts it to my local time. I do not want to keep my time in UTC, because I have some logic that has to run per user by his own time. Does anyone know a C# class that handles this?

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  • Ruby: map tags into a boolean condition to get a true/false result

    - by cgyDeveloper
    I have an array of tags per item like so: item1 = ['new', 'expensive'] item2 = ['expensive', 'lame'] I also have a boolean expression as a string based on possible tags: buy_it = "(new || expensive) && !lame" How can I determine if an item matches the buying criteria based on the tags associated with it? My original thought was to do a gsub on all words in buy_it to become 'true' or 'false' based on them existing in the itemx tags array and then exec the resulting string to get a boolean result. But since the Ruby community is usually more creative than me, is there a better solution?

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  • Is possible to set generic type by another class?

    - by Soul_Master
    I use ASP.NET MVC for serving web application and I want to create something like the following code. <% using(HTML.Form(Model)) { %> <% HTML.CreateTextBox('txt1', x => x.Property1); <% } From the above code, Form extension method will receive object that represent type of current Model object in current View page. Next, CreateTextBox method will receive type from Form method and I can bind textbox to some property of this model. Update 1 The following code is code of CreateTextBox method that will create instance of TextBox class. public static CreateTextBox(string value, Expression<Func<object>> bindedProperty) { // T should be receive from HTML.Form method or class return new TextBox<T>(value); } Is it possible to creating some code that doing something like the above code? Thanks,

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  • Replace the content of a tag with a certain class

    - by fire
    I am looking for suitable replacement code that allows me replace the content inside of any HTML tag that has a certain class e.g. $class = "blah"; $content = "new content"; $html = '<div class="blah">hello world</div>'; // code to replace, $html now looks like: // <div class="blah">new content</div> Bare in mind that: It wont necessarily be a div, it could be <h2 class="blah"> The class can have more than one class and still needs to be replaced e.g. <div class="foo blah green">hello world</div> I am thinking regular expressions should be able to do this, if not I am open to other suggestions such as using the DOM class (although I would rather avoid this if possible because it has to be PHP4 compatible).

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  • Validation controls error message from Resource file and parameterized

    - by BigBoss
    Hi, I would like to get validation messages for validation controls from resource files. I know I can do that easily by following code snippet. <%$ Resources:[filename prefix,]resource-key %> or <asp:Label ID="Label1" runat="server" meta:resourcekey="resource-key-prefix" /> But I would also like to parameterized it. e.g. Above Resource Expression will give me message like "Fill Information.". What I have in resource file is "Fill {0} Information." which should show end user message like "Fill Address Information.".

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  • How do I write a regex that ignores strings starting with a particular prefix, and captures everythi

    - by Mark Rogers
    Background: I'm trying to come up with a regex for a rewrite rule that will take anything that does not start with a particular prefix, and add that prefix to it. But urls that already have the prefix should be rejected by the regular expression (because they already have the url). Example: If the prefix is s1 a string like home will capture the home part. But a string like s1/home, will not capture anything. This way I can add the capture group onto the prefix, so that 'home' will become 's1/home'. I've tried (^s1/), but I'm missing something here, because that rejected 'home' for some reason.

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  • Finding center of fingerprints.

    - by an_ant
    If we suppose that every fingerprint is made of concentric curves (ellipses or circles) - and I'm aware of the fact that not every fingerprint is - how can I find center of those concentric curves? Let's take this "ideal" fingerprint and try to find out its center ... My approaches were to try: Find the spectrum through columns/rows of the image and try to find columns/rows that maximize particular band of the spectrum. I thought that column going through the center would have most regular pattern of changing amplitudes - therefore, most recognizible harmonic. My second approach was to try to count the changes of black-and-white also through the columns and rows, and to maximize that amount among rows and columns also. While these methods work to the some extant, with some additional filtering, they fail, when fingerprint is "not ideal as this one is". Can you think of any different approach? Are there standard ways to do it?

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  • Emacs auto-minor-mode based on extension

    - by vermiculus
    I found this question somewhat on the topic, but is there a way [in emacs] to set a minor mode (or a list thereof) based on extension? For example, it's pretty easy to find out that major modes can be manipulated like so (setq auto-mode-alist (cons '("\\.notes$" . text-mode) auto-mode-alist)) and what I'd ideally like to be able to do is (setq auto-minor-mode-alist (cons '("\\.notes$" . auto-fill-mode) auto-minor-mode-alist)) The accept answer of the linked question mentions hooks, specifically temp-buffer-setup-hook. To use this, you have to add a function to the hook like so (add-hook 'temp-buffer-setup-hook 'my-func-to-set-minor-mode) My question is two-fold: Is there an easier way to do this, similar to major modes? If not, how would one write the function for the hook? It needs to check the file path against a regular expression. If it matches, activate the desired mode (e.g. auto-fill-mode).

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  • Get name and value from the input tag

    - by DroidIn.net
    Before you say "oh no, not again" here I'm stating my case. I'm parsing part of HTML output and the only thing I'm interested in is name and value attributes of each <input/ tag. HTML is actually HTML fragment, may not be well-formed. I don't have DOM or HTML parser and I don't try to parse nested elements anyway. The problem is that I don't know the order or number of attributes so it could be <input name="foo" value="boo"/> or <input type="hidden" name=foo> or <input id=blah value='boo' src="image.png" name="foo" type="img"/>. Is there a single regular expression that would get me values of name and value attribute in predictable order? I wouldn't have asked the question if I could assume that name attribute always precedes value but unfortunately this is not the case

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