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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...tInt()).par
scala> timeMany(1000, intParList.reduce(_ + _))
Took 462.395867 milli seconds
scala> timeMany(1000, intParList.foldLeft(0)(_ + _))
Took 2589.363031 milli seconds
reduce vs fold
Now this is where it gets a little closer to the FP / mathematical roots, and a little trickier to e...
read complete file without using loop in java
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Setting PATH environment variable in OSX permanently
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NitishNitish
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How to configure Ruby on Rails with no database?
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54
Uncomment this line in the environment.rb file:
config.frameworks -= [ :active_record, :active...
What is the difference between std::array and std::vector? When do you use one over other? [duplicat
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159
std::array is just a class version of the classic C array. That means its size is fixed at com...
My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
... leggetter
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answered Sep 23 '12 at 20:57
kanakakanaka
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Python assigning multiple variables to same value? list behavior
... are naming the same object, use the is operator:
>>> a=b=c=[0,3,5]
>>> a is b
True
You then ask:
what is different from this?
d=e=f=3
e=4
print('f:',f)
print('e:',e)
Here, you're rebinding the name e to the value 4. That doesn't affect the names d and f in any way.
I...
Running multiple AsyncTasks at the same time — not possible?
I'm trying to run two AsyncTasks at the same time. (Platform is Android 1.5, HTC Hero.)
However, only the first gets executed. Here's a simple snippet to describe my problem:
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Convert data.frame column to a vector?
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answered Aug 15 '11 at 20:19
joranjoran
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Git: Cannot see new remote branch
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edited Oct 6 '12 at 20:57
answered Oct 6 '12 at 19:08
Ma...