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Do sealed classes really offer performance Benefits?
...ips which say that you should mark your classes as sealed to get extra performance benefits.
12 Answers
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Difference between filter and filter_by in SQLAlchemy
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filter_by is used for simple queries on the column names using regular kwargs, like
db.users.filter_by(name='Joe')
The same can be accomplished with filter, not using kwargs, but instead using the '==' equality operator, which has been overlo...
How to modify PATH for Homebrew?
...stall ruby 1.9.3, read that I need to install homebrew first. Ran brew doctor, and it's giving me a bunch of warnings. One of which is:
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Set up git to pull and push all branches
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The simplest way is to do:
git push --all origin
This will push tags and branches.
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How do I initialize an empty array in C#?
...rray with one element where that element is null.
– rory.ap
Sep 27 '13 at 14:24
15
@roryap - No. ...
How to make “if not true condition”?
...ve written).
Also, looking at your code as is, your use of the $( ... ) form of cmd-substitution is to be commended, but think about what is coming out of the process. Try echo $(cat /etc/passwd | grep "sysa") to see what I mean. You can take that further by using the -c (count) option to grep and...
When should I use jQuery's document.ready function?
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In simple words,
$(document).ready is an event which fires up when document is
ready.
Suppose you have placed your jQuery code in head section and trying to access a dom element (an anchor, an img etc), you will not be able to a...
Matplotlib scatterplot; colour as a function of a third variable
...nt to make a scatterplot (using matplotlib) where the points are shaded according to a third variable. I've got very close with this:
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How to get UTC timestamp in Ruby?
...alar value, e.g. seconds since the Unix epoch, 100-ns intervals since 1601 or maybe a string for display purposes or storing the timestamp in a database, you can readily get that from the object. But that depends very much on your intended use.
Saying that »a true timestamp is the number of second...
How to navigate back to the last cursor position in Visual Studio?
What is the keyboard shortcut navigate back to the last cursor position in Visual Studio?
5 Answers
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