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Rails where condition using NOT NIL
Using the rails 3 style how would I write the opposite of:
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Setting href attribute at runtime
What is the best way to set the href attribute of the <a> tag at run time using jQuery?
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Filtering a list based on a list of booleans
I have a list of values which I need to filter given the values in a list of booleans:
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Heroku error: “Permission denied (public key)”
I keep getting this error. I am using Mac. I generated a key and added it to heroku using
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How to read data from a zip file without having to unzip the entire file
Is there anyway in .Net (C#) to extract data from a zip file without decompressing the complete file?
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python numpy ValueError: operands could not be broadcast together with shapes
In numpy, I have two "arrays", X is (m,n) and y is a vector (n,1)
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Comments in command-line Zsh
I switched quite recently from Bash to Zsh on Ubuntu and I'm quite happy about it. However, there is something I really miss and I did not find how to achieve the same thing.
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How to use RSpec's should_raise with any kind of exception?
... some_method }.to raise_error
RSpec 1 Syntax:
lambda { some_method }.should raise_error
See the documentation (for RSpec 1 syntax) and RSpec 2 documentation for more.
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Recommended way to stop a Gradle build
How can I stop a Gradle build after detecting a problem? I can use an assert, throw an exception, do a System.exit (bad idea), or use a dedicated function in Gradle (but I could not find one). What is the best way for Gradle (and why?).
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How default .equals and .hashCode will work for my classes?
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Yes, the default implementation is Object's (generally speaking; if you inherit from a class that redefined equals and/or hashCode, then you'll use that implementation instead).
From the documentation:
equals
The equals method for c...