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How do I revert a Git repository to a previous commit?
...32
Or if you want to make commits while you're there, go ahead and make a new branch while you're at it:
git checkout -b old-state 0d1d7fc32
To go back to where you were, just check out the branch you were on again. (If you've made changes, as always when switching branches, you'll have to deal wi...
When should I use the Visitor Design Pattern? [closed]
...omplex hierarchy with a well-established interface.)
Now we want to add a new operation to the hierarchy, namely we want each animal to make its sound. As far as the hierarchy is this simple, you can do it with straight polymorphism:
class Animal
{ public: virtual void makeSound() = 0; };
class D...
Should a retrieval method return 'null' or throw an exception when it can't produce the return value
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throw new WtfExcepti????n
– Kamafeather
Jan 16 '18 at 0:41
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What is the logic behind the “using” keyword in C++?
...e
introduced by the typedef specifier. In particular, it does not define
a new type and it shall not appear in the type-id.
Bjarne Stroustrup provides a practical example:
typedef void (*PFD)(double); // C style typedef to make `PFD` a pointer to a function returning void and accepting double
us...
How to Unit test with different settings in Django?
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Newer versions of Django have a specific context manager for this: docs.djangoproject.com/en/1.8/topics/testing/tools/…
– Akhorus
Nov 6 '15 at 14:26
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Eclipse secure storage
...ay.
– Leo Ufimtsev
Oct 29 '14 at 19:51
2
while this does work, then I can't store any passwords. ...
jquery save json data object in cookie
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Nick Craver♦Nick Craver
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Getting indices of True values in a boolean list
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– Ashwini Chaudhary
Jan 31 '14 at 5:51
Oh I see what's happening now. Thank a lot for your help!
...
UITableView backgroundColor always gray on iPad
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because clearly the new ios lets your put a background view. Why its set to some gray view is just an issue that Apple introduced. very odd, very dumb. But then again its every day that I encounter something odd and dumb while coding for iOS
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NodeJS: Saving a base64-encoded image to disk
..."out.png", base64Data, 'base64', function(err) {
console.log(err);
});
new Buffer(..., 'base64') will convert the input string to a Buffer, which is just an array of bytes, by interpreting the input as a base64 encoded string. Then you can just write that byte array to the file.
Update
As ment...