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Checking length of dictionary object [duplicate]

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Weak and strong property setter attributes in Objective-C

What is the difference between weak and strong property setter attributes in Objective-C? 5 Answers ...
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How do you find all subclasses of a given class in Java?

How does one go about and try to find all subclasses of a given class (or all implementors of a given interface) in Java? As of now, I have a method to do this, but I find it quite inefficient (to say the least). The method is: ...
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Why do C and C++ compilers allow array lengths in function signatures when they're never enforced?

This is what I found during my learning period: 10 Answers 10 ...
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How to make an ImageView with rounded corners?

In Android, an ImageView is a rectangle by default. How can I make it a rounded rectangle (clip off all 4 corners of my Bitmap to be rounded rectangles) in the ImageView? ...
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Find files and tar them (with spaces)

Alright, so simple problem here. I'm working on a simple back up code. It works fine except if the files have spaces in them. This is how I'm finding files and adding them to a tar archive: ...
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What is the HTML tabindex attribute?

What is the tabindex attribute used for in HTML? 10 Answers 10 ...
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Get login username in java

How can I get the username/login name in Java? 8 Answers 8 ...
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What is the “right” way to iterate through an array in Ruby?

PHP, for all its warts, is pretty good on this count. There's no difference between an array and a hash (maybe I'm naive, but this seems obviously right to me), and to iterate through either you just do ...
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Mongoose (mongodb) batch insert?

Does Mongoose v3.6+ support batch inserts now? I've searched for a few minutes but anything matching this query is a couple of years old and the answer was an unequivocal no. ...