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How do you query for “is not null” in Mongo?
I would like to execute a following query:
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Declaration/definition of variables locations in ObjectiveC?
Ever since starting to work on iOS apps and objective C I've been really puzzled by the different locations where one could be declaring and defining variables. On one hand we have the traditional C approach, on the other we have the new ObjectiveC directives that add OO on top of that. Could you fo...
What is the meaning of prepended double colon “::”?
I found this line of a code in a class which I have to modify:
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What is the difference between Eclipse for Java (EE) Developers and Eclipse Classic?
What is the difference between Eclipse for Java (EE) Developers and Eclipse Classic?
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Renaming files in a folder to sequential numbers
I want to rename the files in a directory to sequential numbers. Based on creation date of the files.
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GCC -g vs -g3 GDB Flag: What is the Difference?
When compiling C source code with either gcc or Clang, I always use the -g flag to generate debugging information for gdb.
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What is better: @SuppressLint or @TargetApi?
I have issues in my app regarding StrictMode and added the code snippet that basically disables the StrictModeHelper . However, Lint complains about setThreadPolicy() now and proposes to either add
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mongoose vs mongodb (nodejs modules/extensions), which better? and why?
I've just arrived to Node.js and see that there are many libs to use with the MongoDB, the most popular seem to be these two: (mongoose and mongodb). Can I get pros and cons of those extensions? Are there better alternatives to these two?
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Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
I opened an existing iOS project with Xcode6 beta6, and Xcode lists the following warning for both Storyboard and Xib files:
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Is there a fixed sized queue which removes excessive elements?
I need a queue with a fixed size. When I add an element and the queue is full, it should automatically remove the oldest element.
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