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Make Vim show ALL white spaces as a character

I can't find a way to make Vim show all white spaces as a character. All I found was about tabs, trailing spaces etc. 23 An...
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NOT IN vs NOT EXISTS

...der Details] contains any NULL ProductIds is to return no results. See the extra anti semi join and row count spool to verify this that is added to the plan. If Products.ProductID is also changed to become NULL-able the query then becomes SELECT ProductID, ProductName FROM Products p WH...
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How do I calculate the date in JavaScript three months prior to today?

...pet: var d = new Date("January 14, 2012"); console.log(d.toLocaleDateString()); d.setMonth(d.getMonth() - 3); console.log(d.toLocaleDateString()); There are some caveats... A month is a curious thing. How do you define 1 month? 30 days? Most people will say that one month ago me...
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More elegant way of declaring multiple variables at the same time

...a list of flag values (True, False) mapped to flag names (single-character strings). You then transform this data definition into an inverted dictionary which maps flag names to flag values. This can be done quite succinctly with a nested list comprehension, but here's a very readable implementati...
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detach all packages while working in R

... invisible(suppressMessages(suppressWarnings(lapply(c("gsl","fBasics","stringr","stringi","Rmpfr"), require, character.only = TRUE)))) invisible(suppressMessages(suppressWarnings(lapply(names(sessionInfo()$loadedOnly), require, character.only = TRUE)))) sessionInfo() #the above is a...
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How can I correctly prefix a word with “a” and “an”?

...efix), otherwise you may need a special case for a completely-non matching string (such input should be very rare). You probably can't get much better than this - and it'll certainly beat most rule-based systems. Edit: I've implemented this in JS/C#. You can try it in your browser, or download t...
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No serializer found for class org.hibernate.proxy.pojo.javassist.Javassist?

... Solves the problem but json will contain two extra unneeded properties "handler":{},"hibernateLazyInitializer":{} – prettyvoid Mar 28 '16 at 10:48 ...
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Get the first item from an iterable that matches a condition

...for x in the_iterable if x > 3), default_value) Note that you need an extra pair of parentheses around the generator expression in this case − they are needed whenever the generator expression isn't the only argument. I see most answers resolutely ignore the next built-in and so I assume tha...
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Save classifier to disk in scikit-learn

...ed scikit-learn estimators, but can only pickle to the disk and not to a string: share | improve this answer | follow | ...
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How do I execute inserts and updates in an Alembic upgrade script?

... id = sa.Column(sa.Integer, primary_key=True) name = sa.Column(sa.String, nullable=False) team_name = sa.Column('team', sa.String, nullable=False) team_id = sa.Column(sa.Integer, sa.ForeignKey('teams.id'), nullable=False) team = orm.relationship('Team', backref='players') cla...