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Why are dates calculated from January 1st, 1970?

... Do you know if Kernighan and Thompson every expressed a reason for choosing that moment beyond "It's a round number slightly before we started building the thing."? – dmckee --- ex-moderator kitten ...
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Android: How do I prevent the soft keyboard from pushing my view up?

... @Artem Russakovskii I don't know who you are, but I love you for this solution. Thanks a lot. – Lev Jan 12 '17 at 14:56 1 ...
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How to scale Docker containers in production

...Docker applications: http://panamax.io/ Update 15 The Docker project is now addressing orchestration natively (See announcement) Docker machine Docker swarm Docker compose Update 16 Spotify Helios See also: https://blog.docker.com/tag/helios/ Update 17 The Openstack project now has a n...
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How to create module-wide variables in Python? [duplicate]

...name. Imagine a file called foo.py, containing this single line: X = 1 Now imagine you import it. import foo print(foo.X) # prints 1 However, let's suppose you want to use one of your module-scope variables as a global inside a function, as in your example. Python's default is to assume tha...
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Delete column from SQLite table

...wing query: CREATE TABLE table_name (Column_1 TEXT,Column_2 TEXT); =>Now insert the data into table_name from existing_table with the following query: INSERT INTO table_name (Column_1,Column_2) FROM existing_table; =>Now drop the existing_table by following query: DROP TABLE existing_ta...
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What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?

..._id) REFERENCES country (id) ON DELETE NO ACTION ON UPDATE NO ACTION Now simply issue an: alter table region drop foreign key region_ibfk_1; And finally an: alter table region drop column country_id; And you are good to go! ...
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Reorder levels of a factor without changing order of values

... Thank you, this worked. For some strange reason ggplot now correctly changed the order in the legend, but not in the plot. Weird. – crangos Mar 3 '10 at 23:57 7...
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Detect if Android device has Internet connection

...eck if there is an active Internet connection is to try and connect to a known server via http. public static boolean hasActiveInternetConnection(Context context) { if (isNetworkAvailable(context)) { try { HttpURLConnection urlc = (HttpURLConnection) (new URL("http://www.go...
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UITextField - capture return button event

... @Praxiteles This can now be done in storyboard without requiring delegation please check answer below. – Blake Lockley Feb 27 '18 at 23:20 ...
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How are strings passed in .NET?

...ine(strMain); // What gets printed? } There are three things you need to know to understand what happens here: Strings are reference types in C#. They are also immutable, so any time you do something that looks like you're changing the string, you aren't. A completely new string gets created, the ...