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android studio 0.4.2: Gradle project sync failed error
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edited Jan 17 '14 at 8:26
answered Jan 16 '14 at 17:20
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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
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163
The Gemfile is where you specify which gems you want to use, and lets you specify which versio...
Can't find @Nullable inside javax.annotation.*
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147
You need to include a jar that this class exists in. You can find it here
If using Maven, yo...
python dataframe pandas drop column using int
I understand that to drop a column you use df.drop('column name', axis=1). Is there a way to drop a column using a numerical index instead of the column name?
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Why doesn't c++ have &&= or ||= for booleans?
...alent to the logical operations, as long as both operands are of type bool.1
Contrary to what other people have said here, a bool in C++ must never have a different value such as 2. When assigning that value to a bool, it will be converted to true as per the standard.
The only way to get an invali...
How to stop flask application without using ctrl-c
...p.stop()" API, I am curious about how to code this. I am working on Ubuntu 12.10 and Python 2.7.3.
13 Answers
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Performance difference for control structures 'for' and 'foreach' in C#
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130
Well, it partly depends on the exact type of list. It will also depend on the exact CLR you're...
How to add new item to hash
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Create the hash:
hash = {:item1 => 1}
Add a new item to it:
hash[:item2] = 2
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How can I change the color of pagination dots of UIPageControl?
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17 Answers
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Bash tool to get nth line from a file
Is there a "canonical" way of doing that? I've been using head -n | tail -1 which does the trick, but I've been wondering if there's a Bash tool that specifically extracts a line (or a range of lines) from a file.
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