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Confused by python file mode “w+”
...rns 'somedata\n'
Note the f.seek(0) -- if you forget this, the f.read() call will try to read from the end of the file, and will return an empty string.
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Delete branches in Bitbucket
...icon. Click that, then choose Delete branch. Just be sure you want to drop all the changes there!
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Font size in CSS - % or em?
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There's a really good article on web typography on A List Apart.
Their conclusion:
Sizing text and line-height in ems,
with a percentage specified on the
body (and an optional caveat for
Safari 2), was shown to provide
accur...
Android: Difference between Parcelable and Serializable?
...ing data , parcelable objects on the other hand should not be persisted at all . It's a really bad practice
– TheAnimatrix
Mar 25 '17 at 11:16
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Maximum on http header values?
Is there an accepted maximum allowed size for HTTP headers? If so, what is it? If not, is this something that's server specific or is the accepted standard to allow headers of any size?
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What is the difference between “instantiated” and “initialized”?
... it to be. The value is what you assign to it.
Variables are Initialized
All variables are always given an initial value at the point the variable is declared. Thus all variables are initialized.
For value types, like int the compiler will give them a valid value if you do not do so explicitly. i...
Is there anything like inotify on Windows?
...365261(VS.85).aspx
On OSX, the relevant api is the fsevents api.
They're all subtly different from one another, and they all have questionable reliability in edge cases. In general, you can't depend on these apis for a complete view of all changes 100% of the time. Most people using file system mo...
Why does visual studio 2012 not find my tests?
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My unittest project targets x64. When I created the project it was originally targeting x86.
After switching to x64 all my unit tests disappeared.
I had to go to the Test Menu -> Test Setting -Default Processor Architecture -> x64.
They still didn't show up.
Did a build.
Still didn't sh...
Most efficient way to increment a Map value in Java
...s folks--so I decided to run some tests and figure out which method is actually fastest. The five methods I tested are these:
the "ContainsKey" method that I presented in the question
the "TestForNull" method suggested by Aleksandar Dimitrov
the "AtomicLong" method suggested by Hank Gay
the "Trove...
Difference between a virtual function and a pure virtual function [duplicate]
... class. Derived classes can override virtual functions. Virtual functions called through base class pointers/references will be resolved at run-time. That is, the dynamic type of the object is used instead of its static type:
Derived d;
Base& rb = d;
// if Base::f() is virtual and Derived o...