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Check for internet connection availability in Swift
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229
As mentioned in the comments, although its possible to use Objective-C libraries in Swift, I w...
Is there any difference between GROUP BY and DISTINCT
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26 Answers
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'python' is not recognized as an internal or external command [duplicate]
So I have recently installed Python Version 2.7.5 and I have made a little loop thing with it but the problem is, when I go to cmd and type python testloop.py I get the error:
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How do I start Mongo DB from Windows?
...starting. It is showing admin web console waiting for connections on port 28017 .
17 Answers
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Running multiple AsyncTasks at the same time — not possible?
...in what version exactly they changed that.
UPDATE:
Here is what current (2012-01-27) API says on this:
When first introduced, AsyncTasks were executed serially on a single background thread. Starting with DONUT, this was changed to a pool of threads allowing multiple tasks to operate in parall...
Which is faster: Stack allocation or Heap allocation
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23 Answers
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Storyboard doesn't contain a view controller with identifier
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245
Just for future reference:
I'm developing on iOS 6 using Storyboards.
I was having the same ...
Mongodb Explain for Aggregation framework
...ve you the desired results (documentation here).
For older versions >= 2.6, you will need to use the explain option for aggregation pipeline operations
explain:true
db.collection.aggregate([
{ $project : { "Tags._id" : 1 }},
{ $unwind : "$Tags" },
{ $match: {$or: [{"Tags._id":"tag1...
Declaring and initializing variables within Java switches
...he right in the local variable declaration statement.
In your case, case 2 is in the same block as case 1 and appears after it, even though case 1 will never execute... so the local variable is in scope and available for writing despite you logically never "executing" the declaration. (A declarati...