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  • When should I use $ (and can it always be replaced with parentheses)?

    - by J Cooper
    From what I'm reading, $ is described as "applies a function to its arguments." However, it doesn't seem to work quite like (apply ...) in Lisp, because it's a binary operator, so really the only thing it looks like it does is help to avoid parentheses sometimes, like foo $ bar quux instead of foo (bar quux). Am I understanding it right? Is the latter form considered "bad style"?

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  • why does maven3 give up supporting application $version declaration?

    - by Bariscan
    As you see from the title, I want to ask that the case of in maven3 there is no support for $version in pom.xml anymore. Do we have to really write a constant every time in each project in every pom.xml and related configuration files again and again? How can we avoid doing this? How can we use a versioning method like $version? Many thanks in advance, Baris

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  • opening transaction validation in vb.net

    - by Mark
    Can anyone help me on how can I validate transaction example: transaction = mySqlConn.BeginTransaction(IsolationLevel.ReadCommitted) If there's still an opened transaction, then the code above will ignore.. How do I know if there was a transaction not yet committed before opening new transaction to avoid Nested Transaction?

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  • Power error handling inside of sql function

    - by user172062
    I have a power function call inside of a sql function. What is the correct way to handle overflow and underflow conditions since I cannot use a Try Catch inside of a function. I am also trying to avoid modifying the ARITHABORT, ANSI_WARNINGS, and ARITHIGNORE settings in the calling code. GO CREATE FUNCTION TestPow() RETURNS DECIMAL(30, 14) AS BEGIN DECLARE @result FLOAT SET @result = POWER(10.0, 300) RETURN @result END GO SELECT dbo.TestPow()

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  • clearTimeout not working in javascript autocomplete script

    - by Travis
    I am using the following code as part of an autocomplete script to avoid hammering the server with every keystroke: var that = this; textInput.bind("keyup", function() { clearTimeout(that.timer); that.timer = setTimeout (that.doStuff(), 2000); }); Unfortunately, this does not clear the old timers. They still all execute. Does anyone know what I'm missing? Thanks!

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  • ASP .NET 4.0 How do I Redirect/Override the default CDN path for ScriptManager when EnableCDN=true

    - by plattnum
    I am using the EnableCdn=true in my ScriptManager so that WebResource.axd and ScriptResource.axd are overridden with static links to JS libraries at the MS CDN service as follows: <asp:ScriptManager ID="ScriptManager1" runat="server" EnableCdn="true" /> How do I override the CDN URLs or service so that I can retrieve the scripts over HTTPS from the MS CDN service rather than HTTP to avoid the browser mixed mode message? or for that matter a different or my own CDN service entirely.

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  • convert any language into PHP sourcecode

    - by dreftymac
    Question: Is there any such thing as a programming language (other than an esoteric language such as BrainF@#$, or the languages PHP or VB) that you can "compile" into non-obfuscated PHP source code? Rationale: Swip wants to generate ordinary PHP code because it is so ubiquitous for the types of projects swip wants to do. Unfortunately swip would like to actually avoid writing PHP -- strange but true! Swip is crazy enough to want to generate PHP source code without having to type any PHP into Swip's editor.

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  • Is assert evil?

    - by dehmann
    The Go language creators write: Go doesn't provide assertions. (...) Programmers use them as a crutch to avoid thinking about proper error handling and reporting. What is your opinion about this?

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  • Updating a single file in a compressed tar

    - by Phil
    Given a compressed archive file such as application.tar.gz which has a folder application/x/y/z.jar among others, I'd like to be able to take my most recent version of z.jar and update/refresh the archive with it. Is there a way to do this other than something like the following? tar -xzf application.tar.gz cp ~/myupdatedfolder/z.jar application/x/y tar -czf application application.tar.gz I understand the -u switch in tar may be of use to avoid having to untar the whole thing, but I'm unsure how to use it exactly.

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  • IOS4 UISplitViewController in Portrait Orientation with RootViewController showing like Landscape

    - by magic-c0d3r
    In IOS 3.2 I was able to display my UISplitViewController side by side like in landscape mode. In IOS 4.2 the RootViewController (MasterView) is not showing up in portrait mode. Does anyone know if we need to display the rootviewcontroll in a popover? Can we display it side by side like how it is in landscape mode? I want to avoid having to click on a button to show the masterview (when in portrait mode)

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  • Inexpensive ways to add seek to a filetype object

    - by becomingGuru
    PdfFileReader reads the content from a pdf file to create an object. I am querying the pdf from a cdn via urllib.urlopen(), this provides me a file like object, which has no seek. PdfFileReader, however uses seek. What is the simple way to create a PdfFileReader object from a pdf downloaded via url. Now, what can I do to avoid writing to disk and reading it again via file(). Thanks in advance.

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  • Why has anybody ever used COBOL?

    - by sarzl
    I know: You and me hate COBOL. I took a look at a lot of code examples and it didn't take me long to know why everybody tries to avoid it. So I really have no idea: Why was COBOL ever used? I mean: Hey - there was Fortran before it, and Fortran looks like a jesus-language compared to COBOL. This isn't argumentative but historical as I'm young and didn't even know about COBOL before 4 months.

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  • How can i access to smartcard from ASP.NET site?

    - by Grassino87
    Hi, i need to comunicate with a smartcard from an ASP.NET site. I've create a dll(using Winscard.dll and MCSCM.dll that is the SCM Micro Reader's dll) that work with the cardreader on windows but i'm not able to use it with ASP.NET. The project will run only on IE and i must avoid Javascript. Thank you for the help.

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  • How can I tell JWebUnit to contact specific Selenium servers

    - by Peter Tillemans
    We want to run selenium backed jwebunit tests from our hudson server. We have a couple of selenium rc servers already on our network which I'd like to reuse. However how can I configure jwebunit to use those servers as I would like to avoid installing a slenium rc server on the hudson. Building is already work enough without starting/stopping firefoxes.

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  • Can a single argument constructor with a default value be subject to implicit type conversion

    - by Richard
    I understand the use of the explicit keyword to avoid the implicit type conversions that can occur with a single argument constructor, or with a constructor that has multiple arguments of which only the first does not have a default value. However, I was wondering, does a single argument constructor with a default value behave the same as one without a default value when it comes to implicit conversions?

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  • Creating a Desktop Shortcut Using a Web Page

    - by cmessier
    I am trying to create something on a webpage that allows my users to create a desktop shortcut. Because my users are NOT technically savvy, I would like to avoid having them try to drag and drop. Is there a way that I could create a button on a webpage (either using JavaScript or .Net) that automatically creates a desktop shortcut for the user? If you have follow up questions, please let me know. Thanks

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  • What is(are) currently the best language(s) for modern web site design? Recommendations?

    - by Jereme Hall
    I'm a little out of date, before HTML4 and javascript got AJAXy. Does anyone have opinions about the best tools for web site design? I'd rather avoid ASP and .NET, since I've got a limited budget. This seems like a good time to start fresh. Please keep the replies on the coding recommendations, as I already know how to register a domain name, redirect it, set up Apache. (I could use some opinions on the various Apache flavors)

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  • Outlook - check email address type

    - by Chris Gunner
    I am trying to make a macro in Outlook that will scan the To: list for a certain text string, and spit out a message if all but one (or two, etc) addresses have it. Is there a simple way to do this? Essentially, I am trying to write something that'll avoid being able to send a restricted message to a bunch of people with the string 'xyz' in the address, if one or more do not have it. AutoComplete makes this difficult, without checking through one-by-one.

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  • How to add a context processor from a Django app

    - by Edan Maor
    Say I'm writing a Django app, and all the templates in the app require a certain variable. The "classic" way to deal with this, afaik, is to write a context processor and add it to TEMPLATE_CONTEXT_PROCESSORS in the settings.py. My question is, is this the right way to do it, considering that apps are supposed to be "independent" from the actual project using them? In other words, when deploying that app to a new project, is there any way to avoid the project having to explicitly mess around with its settings?

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  • Drive a POS printer via USB in c#

    - by JDibble
    Any ideas how i can best drive a USB POS printer from c#. POS printers are usually serial, TCP/IP or USB based. I know how to accomplish serial and TCP/IP but have no idea about communications through USB in C#. I know that there is a layer available from Microsoft called POS.NET, but I want to try and avoid using this. Any ideas or any C# libraries that people can recomend would be really appreciated. Thanks

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  • jquery delegate table rows selector

    - by Jackob
    I have a table which may contains other inner tables (it's not possible to edit generated markup). I want to create a delegate function for row mouseenter and mouseleave which only triggers for the associated main table rows (and not inner tables rows), as following: $("#tableid").delegate("tr", "mouseenter mouseleave", function(e) { //do stuff here }); But with this selector it selects also the inner table rows, so how can I modify the selector to avoid selecting inner table rows?

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