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How do I make and use a Queue in Objective-C?
I want to use a queue data structure in my Objective-C program. In C++ I'd use the STL queue. What is the equivalent data structure in Objective-C? How do I push/pop items?
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Do I need to disable NSLog before release Application?
When releasing an app for iPhone, if I disable NSLog(); will it perform better?
12 Answers
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Extending from two classes
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You can only Extend a single class. And implement Interfaces from many sources.
Extending multiple classes is not available. The only solution I can think of is not inheriting either class but instead having an internal variable of each class and doing more of a p...
Why is an array not assignable to Iterable?
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Arrays can implement interfaces (Cloneable and java.io.Serializable). So why not Iterable? I guess Iterable forces adding an iterator method, and arrays don't implement methods. char[] doesn't even override toString. Anyway, arrays of re...
When should null values of Boolean be used?
...hile Boolean allows true , false , and null . I have started to convert my boolean s to Boolean s. This can cause crashes in tests such as
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Maintain model of scope when changing between views in AngularJS
I am learning AngularJS. Let's say I have /view1 using My1Ctrl , and /view2 using My2Ctrl ; that can be navigated to using tabs where each view has its own simple, but different form.
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Acronyms in CamelCase [closed]
I have a doubt about CamelCase. Suppose you have this acronym: Unesco = United Nations Educational, Scientific and Cultural Organization.
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pip installing in global site-packages instead of virtualenv
... the virtualenv folder. Here's how I set up Python3 and virtualenv on OS X Mavericks (10.9.1):
30 Answers
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Change bootstrap navbar collapse breakpoint without using LESS
... when the browser width drops below 768px, the navbar changes to collapsed mode. I want to change this width to 1000px so when the browser is below 1000px the navbar changes to collapsed mode. I want to do this without using LESS, I am using stylus not LESS.
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How to use multiple arguments for awk with a shebang (i.e. #!)?
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This seems to work for me with (g)awk.
#!/bin/sh
arbitrary_long_name==0 "exec" "/usr/bin/gawk" "--re-interval" "-f" "$0" "$@"
# The real awk program starts here
{ print $0 }
Note the #! runs /bin/sh, so this script is first inte...