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Test if a class has an attribute?

I'm trying to do a little Test-First development, and I'm trying to verify that my classes are marked with an attribute: 4 ...
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How can I push a local Git branch to a remote with a different name easily?

I've been wondering if there's an easy way to push and pull a local branch with a remote branch with a different name without always specifying both names. ...
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Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?

... be created. The entire idea of dispatch_once() is "perform something once and only once", which is precisely what we're doing. share | improve this answer | follow ...
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Merging two arrays in .NET

Is there a built in function in .NET 2.0 that will take two arrays and merge them into one array? 21 Answers ...
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plot a circle with pyplot

...rcle with matplotlib.pyplot (please no pylab) taking as input center (x,y) and radius r. I tried some variants of this: 9 A...
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Easiest way to convert a List to a Set in Java

... because there are pitfalls here depending on which implementations of Set and Map one is using; HashSet is assumed here. – Madbreaks Jul 3 '18 at 17:25 1 ...
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HttpClient not supporting PostAsJsonAsync method C#

I am trying to call a web API from my web application. I am using .Net 4.5 and while writing the code I am getting the error HttpClient does not contain a definition PostAsJsonAsync method. ...
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How do you remove the title text from the Android ActionBar?

I'm looking through the Holo.Light theme, and I can't seem to find the magic style to override to get rid of the title text that briefly shows up when my app first launches. ...
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ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'db'

... No, you should run mysql -u root -p in bash, not at the MySQL command-line. If you are in mysql, you can exit by typing exit. share | improve this answer | follow ...
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How do I use CREATE OR REPLACE?

Am I correct in understanding that CREATE OR REPLACE basically means "if the object exists, drop it, then create it either way?" ...