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How can I recover a removed file in Mercurial (if at all)?
...ath to deleted file>
The deleted file will now be in your working copy, ready to be committed back into head.
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Convert a list to a dictionary in Python
... most Pythonic in Python 3, although as EOL notes in a comment, zip() is already lazy in Python 3 so you don't need izip().
i = iter(a)
b = dict(zip(i, i))
If you want it on one line, you'll have to cheat and use a semicolon. ;-)
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What is “2's Complement”?
...part, with Two's Complement . I want to understand it but everything I've read hasn't brought the picture together for me. I've read the wikipedia article and various other articles, including my text book .
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Replace whitespaces with tabs in linux
...tabs, writing to standard output. With
no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options
too.
-a, --all
convert all blanks, instead of just initial blanks
--first-only
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Git checkout: updating paths is incompatible with switching branches
...ed as commit? Please add this to the answer and save people hours worth of reading the same answers that only work for origin.
– Bruno Bronosky
Feb 14 '13 at 20:56
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How do you check if a certain index exists in a table?
...:
CREATE INDEX IX_IndexName
ON dbo.TableName
WITH (DROP_EXISTING = ON);
Read more here: CREATE INDEX (Transact-SQL) - DROP_EXISTING Clause
N.B. As mentioned in the comments, the index must already exist for this clause to work without throwing an error.
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Location of sqlite database on the device
...>"). Which in fact returns the path above. You can access this path for read-write but only from application that created the database.
– Yaroslav Mytkalyk
May 23 '14 at 9:20
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Can I restore deleted files (undo a `git clean -fdx`)?
... PyCharm also supports this! Thank you for this answer. I'm so glad I read the rest of the answers after the top 3 were "no sorry you're out of luck".
– Bryson
Mar 22 '19 at 18:18
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What do all of Scala's symbolic operators mean?
... = Map(1 -> "Eins", 2 -> "Zwei", 3 -> "Drei")
Wooop, there is already another occurrence of a strange punctuation. The hyphen and greater-than characters, which resemble a right-hand arrow, is an operator which produces a Tuple2. So there is no difference in the outcome of writing either ...
What's Alternative to Singleton
...on of new objects into a factory, so you can avoid using singletons. Worth reading for sure.
In short we move all of the new operators to a factory.
We group all of the objects of similar lifetime into a single factory.
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