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Why is lock(this) {…} bad?
...t you will be acquiring a lock on this unless it has been documented. Even then, relying on documentation to prevent a problem is sub-optimal.
Finally, there is the common misconception that lock(this) actually modifies the object passed as a parameter, and in some way makes it read-only or inacces...
What does the “Just” syntax mean in Haskell?
... an extra value (Nothing) that represents a lack of value! The type system then requires that you check for that extra value before it will let you get at the Integer that might be there. This prevents a remarkable number of bugs.
Many languages today handle this sort of "no-value" value via NULL r...
Hidden Features of C#? [closed]
... I believe a problem will appear if you rely on this technique and then you have to serialize the class. You will eliminate the event, and then on deserialization you will get a NullRefference.... .So one can just stick to the "old way" of doing things. It's safer.
– si...
iPhone: Detecting user inactivity/idle time since last screen touch
...Controller function for timeout event. It happens when I show UIAlertView, then popToRootViewController, then I press any button on UIAlertView with a selector from uiviewController which is already popped
– Gargo
Oct 24 '12 at 9:00
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Why catch and rethrow an exception in C#?
... fyi (though you probably know) if you're not going to use that ex object, then there's no need to instantiate it.
– Eoin Campbell
May 19 '09 at 8:16
79
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Append an element with fade in effect [jQuery]
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Is there a reason you first hide then append (because it's faster to first set a style before attaching to the DOM, or something like that) or does it not make a difference?
– qwertymk
Jan 14 '11 at 3:12
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How to set breakpoints in inline Javascript in Google Chrome?
...debugger keyword which is inconvenient to put in lot of places in code and then having to delete.
– ace
Mar 1 '11 at 15:53
2
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How to correctly use the extern keyword in C
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then why the same extern thing is there in Git:a very popular and modern software check it: github.com/git/git/blob/master/strbuf.h
– rsjethani
Aug 11 '13 at 14:11
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How to define an enumerated type (enum) in C?
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Couldn't I just type enum MyEnum {} myVar; and then use the variable myVar as follows: myVar = SOMEENUMCONSTANT;
– Mushy
Sep 21 '17 at 21:38
add a ...
How to create Android Facebook Key Hash?
...e extracted code here.
detect debug.keystore file path. If u didn't find, then do a search in C:/ and use the Path in the command in next step.
detect your keytool.exe path and go to that dir/ in command prompt and run this command in 1 line-
$ keytool -exportcert -alias androiddebugkey -keystore...