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What does “@” mean in Windows batch scripts
...ee @echo off in the beginning of batch files. Turn off command echoing and don't echo the command turning it off.
Removing that line (or commenting it out) is often a helpful debugging tool in more complex batch files as you can see what is run prior to an error message.
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Can we define implicit conversions of enums in c#?
...r the following:
public sealed class AccountStatus
{
public static readonly AccountStatus Open = new AccountStatus(1);
public static readonly AccountStatus Closed = new AccountStatus(2);
public static readonly SortedList<byte, AccountStatus> Values = new SortedList<byte, Accou...
Passing arrays as parameters in bash
... of "takes...", why is an explicit array declaration needed? 3 - And what does the ! mean in the expression ${!1}, and why is [@] not required or even allowed there? -- This works, and all of these details seem to be needed based on my testing, but I would like to understand why!
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Java's Interface and Haskell's type class: differences and similarities?
...e t where all of the values have the type t -> whatever (where whatever does not contain t). This is because with the kind of inheritance relationship in Java and similar languages, the method called depends on the type of object they are called on, and nothing else.
That means it's really hard ...
Pipe to/from the clipboard in Bash script
... I expect you're probably a Linux user who wants to put stuff in the X Windows primary clipboard. Usually, the clipboard you want to talk to has a utility that lets you talk to it.
In the case of X, there's xclip (and others). xclip -selection c will send data to the clipboard that works with Ctr...
Circular (or cyclic) imports in Python
...module
entry in sys.modules and then executes the code in the module. It does not
return control to the calling module until the execution has completed.
If a module does exist in sys.modules then an import simply returns that
module whether or not it has completed executing. That is the ...
$(window).scrollTop() vs. $(document).scrollTop()
...ng to have the same effect.
However, as pointed out in the comments: $(window).scrollTop() is supported by more web browsers than $('html').scrollTop().
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Delete keychain items when an app is uninstalled
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You're wrong and you're probably doing something that's causing user defaults to be cleared. The entire point of NSUserDefaults is to save preferences and have those preferences persist through multiple application launches. Again, resetting the device or de...
MySQL foreign key constraints, cascade delete
...I think I wrote my question the wrong way. If I delete a category then how do I make sure that it would not delete products that also are related to other categories.
– Cudos
May 27 '10 at 7:26
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Node.js: printing to console without a trailing newline?
... printing to the console without a trailing newline? The console object documentation doesn't say anything regarding that:
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