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Some questions about Automatic Reference Counting in iOS5 SDK
...nk will be completed) for iOS 4.3.
I just read about ARC in iOS 5, and basically I understood that we will never need to release and retain objects anymore. My questions are:
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How can I use if/else in a dictionary comprehension?
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@Marcin's answer covers it all, but just in case someone wants to see an actual example, I add two below:
Let's say you have the following dictionary of sets
d = {'key1': {'a', 'b', 'c'}, 'key2': {'foo', 'bar'}, 'key3': {'so', 'sad'}}
and you want to create a new d...
Rebase a single Git commit
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You can cherry-pick XX to master.
git checkout master
git cherry-pick <commit ID of XX>
And remove the last commit from the feature branch with git reset.
git checkout Feature-branch
git reset --hard HEAD^
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How do I provide custom cast support for my class?
How do I provide support for casting my class to other types? For example, if I have my own implementation of managing a byte[] , and I want to let people cast my class to a byte[] , which will just return the private member, how would I do this?
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What's the standard way to work with dates and times in Scala? Should I use Java types or there are
What's the standard way to work with dates and times in Scala? Should I use Java types such as java.util.Date or there are native Scala alternatives?
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Booleans, conditional operators and autoboxing
... Boolean (autoboxing of 3rd operand to Boolean)
See Java Language Specification, section 15.25 Conditional Operator ? :
For E1, the types of the 2nd and 3rd operands are Boolean and boolean respectively, so this clause applies:
If one of the second and third operands is of type boolean and t...
Inserting HTML into a div
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Using JQuery would take care of that browser inconsistency. With the jquery library included in your project simply write:
$('#yourDivName').html('yourtHTML');
You may also consider using:
$('#yourDivName').append('yourtHTML');
This will add y...
Finding the index of elements based on a condition using python list comprehension
...ab's, you would use numpy, a package for multidimensional arrays and numerical math in Python which is heavily inspired by Matlab. You would be using a numpy array instead of a list.
>>> import numpy
>>> a = numpy.array([1, 2, 3, 1, 2, 3])
>>> a
array([1, 2, 3, 1, 2, 3])
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How to reduce iOS AVPlayer start delay
Note, for the below question: All assets are local on the device -- no network streaming is taking place. The videos contain audio tracks.
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Source code highlighting in LaTeX
... in LaTeX. The package listings seems to be the best choice for most use-cases and for me it was, until now.
3 Answers
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