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What is a None value?
I have been studying Python, and I read a chapter which describes the None value, but unfortunately this book isn't very clear at some points. I thought that I would find the answer to my question, if I share it there.
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Boolean vs boolean in Java
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Yes you can use Boolean/boolean instead.
First one is Object and second one is primitive type.
On first one, you will get more methods which will be useful.
Second one is cheap considering memory expense The second will save you a lot more memory, so go for it
Now ch...
Class method differences in Python: bound, unbound and static
...and unbound methods.
Basically, a call to a member function (like method_one), a bound function
a_test.method_one()
is translated to
Test.method_one(a_test)
i.e. a call to an unbound method. Because of that, a call to your version of method_two will fail with a TypeError
>>> a_test...
How do you fix a bad merge, and replay your good commits onto a fixed merge?
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Please don't use this recipe if your situation is not the one described in the question. This recipe is for fixing a bad merge, and replaying your good commits onto a fixed merge.
Although filter-branch will do what you want, it is quite a complex command and I would probably choos...
How do I pass an object from one activity to another on Android? [duplicate]
I need to be able to use one object in multiple activities within my app, and it needs to be the same object. What is the best way to do this?
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How to 'git pull' into a branch that is not the current one?
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You've got a worktree you don't want to touch, so use another one. Clone is cheap, it's built for this.
git fetch origin master # nice linear tree
git clone . ../wip -b master # wip's `origin/master` is my `master`
cd ../wip # .
git pull origin origin/master...
PHP array delete by value (not key)
...would be slower as it's comparing two arrays, not simply searching through one like array_search().
– Bojangles
Aug 29 '11 at 0:57
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How does PHP 'foreach' actually work?
...rm some kind of modification a real copy (called a "duplication") will be done. See You're being lied to for a more extensive introduction on this topic.
PHP 5
Internal array pointer and HashPointer
Arrays in PHP 5 have one dedicated "internal array pointer" (IAP), which properly supports modific...
How to cast List to List
...pointed. -- Meanwhile, .NET has two separate extension methods for this -- one called .Cast<T>() and one called .OfType<T>(). The former performs a cast on each element (throwing the desired exceptions) while the latter filters out elements that can't be cast (so you would pick one depe...
Is AsyncTask really conceptually flawed or am I just missing something?
...lieve that a class that flawed in design made it into the framework and no-one is talking about it, so I guess I just must be missing something.
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