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Remove Fragment Page from ViewPager in Android

I'm trying to dynamically add and remove Fragments from a ViewPager, adding works without any problems, but removing doesn't work as expected. ...
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Meaning of @classmethod and @staticmethod for beginner? [duplicate]

... self.month = month self.year = year @classmethod def from_string(cls, date_as_string): day, month, year = map(int, date_as_string.split('-')) date1 = cls(day, month, year) return date1 @staticmethod def is_date_valid(date_as_string): day...
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How to make a flat list out of list of lists?

...L-2 times, and so on; total number of copies is I times the sum of x for x from 1 to L excluded, i.e., I * (L**2)/2. The list comprehension just generates one list, once, and copies each item over (from its original place of residence to the result list) also exactly once. ...
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How to do Base64 encoding in node.js?

...doing base64 encoding of the result. For example: > console.log(Buffer.from("Hello World").toString('base64')); SGVsbG8gV29ybGQ= > console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64').toString('ascii')) Hello World Buffers are a global object, so no require is needed. Buffers created with ...
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How can I build a small operating system on an old desktop computer? [closed]

...erything else your OS kernel needs to do to get it up to a bootable state. From that point on it's basically a matter of writing device drivers for the hardware you need to support, and offering implementations of the C library functions to make kernel calls for things like opening files and devices...
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django change default runserver port

... django.setup() # Override default port for `runserver` command from django.core.management.commands.runserver import Command as runserver runserver.default_port = "8080" from django.core.management import execute_from_command_line execute_from_command_line(sys.argv) ...
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Cross-thread operation not valid: Control accessed from a thread other than the thread it was create

...d on the value of a control. I don't want to change the value of a control from the child thread. I'm not going to do it ever from a child thread. So only accessing the value so that corresponding data can be fetched from the database. The solution you want then should look like: UserContrl1_LOadDa...
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Alternative for PHP_excel

... you share under which license you offer it? I had problems to decipher it from your answer resp. from the sources you linked but would be interested to learn more. – hakre Jun 4 '14 at 9:07 ...
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What does “mro()” do?

... Method Resolution Order. It returns a list of types the class is derived from, in the order they are searched for methods. mro() or __mro__ works only on new style classes. In python 3, they work without any issues. But in python 2 those classes need to inherit from object. ...
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What exactly are late static bindings in PHP?

... used. This means that if you make a method in a parent class and call it from a child class, self will not reference the child as you might expect. Late static binding introduces a new use for the static keyword, which addresses this particular shortcoming. When you use static, it represents the...