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How do you connect localhost in the Android emulator? [duplicate]
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But you need to change API from "localhost:port" to "127.0.0.1:port" first. after that, Use 10.0.2.2 to access your actual machine.
– binhtruong.it
Dec 9 '18 at 11:49
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String output: format or concat in C#?
...I'd go with the String.Format option, only because it makes the most sense from an architectural standpoint. I don't care about the performance until it becomes an issue (and if it did, I'd ask myself: Do I need to concatenate a million names at once? Surely they won't all fit on the screen...)
Con...
Shiro vs. SpringSecurity [closed]
...ingSecurity would be the right Choice, but Spring security seems to suffer from excessive complexity, it certainly does not seem like it is making security easier to implement, Shiro seems to be much more coherent and easier to understand. I am looking for lists of pros and cons between these two fr...
How to convert an enum type variable to a string?
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@AdN That design is wrong. The mapping from enum to human-readable string shouldn't be implemented as an array of strings indexed by the enum value. Your experience (presumably) shows why. The mapping should be an explitiy array of (enum,string) pairs, so if you f...
What are some (concrete) use-cases for metaclasses?
... This is true for Python 3 as well, because a class B, inheriting from A, whose metaclass is M, is also a type-of M. So, when B is evaluated, M is invoked to create it, and this effectively allows you to "work on any subclasses" (of A). Having said that, Python 3.6 introduced the much simpl...
'const string' vs. 'static readonly string' in C#
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+1, And the obvious conclusion, from a practical and semantic point-of-view: const should only be used for constants - constants being values that never, ever, ever change.
– LukeH
Jul 6 '10 at 23:49
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How to create a new database using SQLAlchemy?
...eries in a transaction. To get around this, get the underlying connection from the engine:
>>> conn = engine.connect()
But the connection will still be inside a transaction, so you have to end the open transaction with a commit:
>>> conn.execute("commit")
And you can then pr...
When to use pip requirements file versus install_requires in setup.py?
...quirements file).
So, in summary: install_requires is to keep people away from things that you know don't work, while requirements files to lead people towards things you know do work. One reason for this is that install_requires requirements are always checked, and cannot be disabled without actu...
Core Data vs SQLite 3 [closed]
...ng forward and backward links consistent when objects are added/removed to/from a relationship). Core Data is thus an ideal framework for building the "model" component of an MVC architecture.
To implement its graph management, Core Data happens to use SQLite as a disk store. It could have been imp...
Why do some scripts omit the closing PHP tag, '?>'? [duplicate]
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From PHP: Instruction Separation
The closing tag of a PHP block at the end of a file is optional, and in some cases omitting it is helpful when using include() or require(), so unwanted whitespace will not occur at the en...