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Getting time elapsed in Objective-C
I need to get the time elapsed between two events, for example, the appearance of a UIView and the user's first reaction.
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Displaying a message in iOS which has the same functionality as Toast in Android
I need to know if there is any method in iOS which behaves like Toast messages in Android. That is, I need to display a message which is dismissed automatically after few seconds. This is similar to the functionality of the Toast class in the Android environment.
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How to set DOM element as the first child?
I have element E and I'm appending some elements to it. All of a sudden, I find out that the next element should be the first child of E. What's the trick, how to do it? Method unshift doesn't work because E is an object, not array.
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What is SuppressWarnings (“unchecked”) in Java?
Sometime when looking through code, I see many methods specify an annotation:
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Do I need to create indexes on foreign keys on Oracle?
I have a table A and a table B . A has a foreign key to B on B 's primary key, B_ID .
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Add directives from directive in AngularJS
I'm trying to build a directive that takes care of adding more directives to the element it is declared on.
For example, I want to build a directive that takes care of adding datepicker , datepicker-language and ng-required="true" .
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in iPhone App How to detect the screen resolution of the device
In iPhone App,
while running the App on device How to detect the screen resolution of the device on which App is running?
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String variable interpolation Java [duplicate]
String building in Java confounds me. I abhore doing things like:
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Xcode debugging - displaying images
I love using the Xcode debugger. You can take a look at a variable's value and even change it.
6 Answers
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Forward declaration of nested types/classes in C++
I recently got stuck in a situation like this:
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