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How do I extract a sub-hash from a hash?
...in other answers, but to sum them in one place:
x = {a: 1, b: 2, c: 3, d: 4}
# => {:a=>1, :b=>2, :c=>3, :d=>4}
x.slice(:a, :b)
# => {:a=>1, :b=>2}
x
# => {:a=>1, :b=>2, :c=>3, :d=>4}
x.except(:a, :b)
# => {:c=>3, :d=>4}
x
# => {:a=>1, :b=>...
python max function using 'key' and lambda expression
... Applying max to a list of tuples.
>>> lis = [(1,'a'), (3,'c'), (4,'e'), (-1,'z')]
By default max will compare the items by the first index. If the first index is the same then it'll compare the second index. As in my example, all items have a unique first index, so you'd get this as the...
Padding within inputs breaks width 100%
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Vega
21.4k1414 gold badges6262 silver badges8383 bronze badges
answered Dec 17 '12 at 16:29
Víctor Dieppa Ga...
Android Gradle plugin 0.7.0: “duplicate files during packaging of APK”
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475
As of Android Studio version 0.8.14
You should add:
android {
packagingOptions {
...
Running a command in a Grunt Task
... with grunt-exec.
– Nathan
Mar 10 '14 at 18:44
3
Is there a way to use grunt-exec synchronously? ...
How to check whether a string is Base64 encoded or not
I want to decode a Base64 encoded string, then store it in my database. If the input is not Base64 encoded, I need to throw an error.
...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
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Bhuwan
14.8k44 gold badges2222 silver badges4646 bronze badges
answered Apr 20 '10 at 13:25
djdolberdjdolber
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Laravel requires the Mcrypt PHP extension
I am trying to use the migrate function in Laravel 4 on OSX . However, I am getting the following error:
22 Answers
...
C++11 reverse range-based for-loop
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234
Actually Boost does have such adaptor: boost::adaptors::reverse.
#include <list>
#includ...
When to use Task.Delay, when to use Thread.Sleep?
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Bakudan
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answered Nov 19 '13 at 23:44
Stephen ClearyStephen Cleary
...