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how to check redis instance version?
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310
$ redis-server --version
gives you the version.
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Convert an image to grayscale in HTML/CSS
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731
Support for CSS filters has landed in Webkit. So we now have a cross-browser solution.
im...
How can I have two fixed width columns with one flexible column in the center?
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3 Answers
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Active
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CSS triangle custom border color
...w to go about doing this. I would like to steer clear of javascript and css3 simply because of compatibility. I am trying to have the triangle have a white background with a 1px border (around the angled sides of the triangle) with color #CAD5E0. Is this possible? Here's what I have so far:
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std::vector performance regression when enabling C++11
...your original code, with container.push_back(Item());)
$ g++ -std=c++11 -O3 -flto regr.cpp && perf stat -r 10 ./a.out
Performance counter stats for './a.out' (10 runs):
35.426793 task-clock # 0.986 CPUs utilized ( +- 1.75% )
4 cont...
Global access to Rake DSL methods is deprecated
I am working through the Ruby on Rails 3 tutorial book and typed the following on the command line:
5 Answers
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How to generate a random string in Ruby
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34 characters and blazing fast: ('a'..'z').to_a.shuffle[0,8].join. Note you'll need Ruby >=1.9 to shuffle.
– fny
Jun 14 '12 at 17:35
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iOS UIImagePickerController result image orientation after upload
I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting/capturing an image using a UIImagePickerController :
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Best way to iterate through a Perl array
...he array elements occurs. ($_ is aliased to the element in #1, but #2 and #3 actually copy the scalars from the array.)
#5 might be similar.
In terms memory usage: They're all the same except for #5.
for (@a) is special-cased to avoid flattening the array. The loop iterates over the indexes of the...
Extract elements of list at odd positions
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232
Solution
Yes, you can:
l = L[1::2]
And this is all. The result will contain the elements pl...