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parseInt(null, 24) === 23… wait, what?
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240
It's converting null to the string "null" and trying to convert it. For radixes 0 through 23, th...
Is there any way to hide “-” (Delete) button while editing UITableView
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260
Here is my complete solution, without indentation (0left align) of the cell!
- (BOOL)tableView:...
Cannot deserialize the JSON array (e.g. [1,2,3]) into type ' ' because type requires JSON object (e.
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answered Mar 21 '14 at 11:40
har07har07
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What does T&& (double ampersand) mean in C++11?
...evelopers.
CAUTION: the linked article on MSDN ("Rvalue References: C++0x Features in VC10, Part 2") is a very clear introduction to Rvalue references, but makes statements about Rvalue references that were once true in the draft C++11 standard, but are not true for the final one! Specifically, ...
What is the performance cost of having a virtual method in a C++ class?
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104
I ran some timings on a 3ghz in-order PowerPC processor. On that architecture, a virtual functi...
Is there a library function for Root mean square error (RMSE) in python?
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answered Sep 4 '13 at 20:56
GregGreg
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How do you calculate log base 2 in Java for integers?
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10 Answers
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Active
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How do I print out the contents of an object in Rails for easy debugging?
...ssor :name, :age
end
user = User.new
user.name = "John Smith"
user.age = 30
puts user.inspect
#=> #<User:0x423270c @name="John Smith", @age=30>
puts user.to_yaml
#=> --- !ruby/object:User
#=> age: 30
#=> name: John Smith
Hope that helps.
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Display open transactions in MySQL
...a connection breaks
From the MySQL docs: http://dev.mysql.com/doc/refman/5.0/en/mysql-tips.html
4.5.1.6.3. Disabling mysql Auto-Reconnect
If the mysql client loses its connection to the server while sending a statement, it immediately and automatically tries to reconnect once to the server ...
Conda: Installing / upgrading directly from github
...do:
name: sample_env
channels:
dependencies:
- requests
- bokeh>=0.10.0
- pip:
- "--editable=git+https://github.com/pythonforfacebook/facebook-sdk.git@8c0d34291aaafec00e02eaa71cc2a242790a0fcc#egg=facebook_sdk-master"
It's still calling pip under the covers, but you can now unify ...