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UIDevice uniqueIdentifier deprecated - What to do now?
It has just come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and unavailable in iOS 7 and above. No alternative method or property appears to be available or forthcoming.
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Does using final for variables in Java improve garbage collection?
...ect referred to by a live object is also marked as being alive.
After the completion of the mark phase, the GC sweeps through the heap, freeing memory for all unmarked objects (and compacting the memory for the remaining live objects).
Also, it's important to recognize that the Java heap memory is...
Using Linq to get the last N elements of a collection?
...ch preserves item order without a dependency on any sorting, and has broad compatibility across several LINQ providers.
It is important to take care not to call Skip with a negative number. Some providers, such as the Entity Framework, will produce an ArgumentException when presented with a negativ...
Test iOS app on device without apple developer program or jailbreak
...e (and you certainly no longer have to jailbreak your device if you're not comfortable doing so).
Well, not for the majority of use cases anyway. For obvious reasons, certain capabilities and entitlements that require Program membership such as Game Center and in-app purchases will not be available ...
What is the difference between 'E', 'T', and '?' for Java generics?
I come across Java code like this:
6 Answers
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How do I push a local repo to Bitbucket using SourceTree without creating a repo on bitbucket first?
...ks like ssh://git@bitbucket.org/<username>/<reponame>.git. I recommend just using https)
BitBucket is great for private repos, but you'll need to set up an ssh key to authorize your computer to work with your BitBucket account. Luckily Sourcetree makes it relatively simple:
Creating a ...
What is self-documenting code and can it replace well documented code? [closed]
I have a colleague who insists that his code doesn't need comments, it's "self documenting."
44 Answers
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How to decide font color in white or black depending on background color?
...hold of 186 is based on theory, but can be adjusted to taste. Based on the comments below a threshold of 150 may work better for you.
Edit: The above is simple and works reasonably well, and seems to have good acceptance here at StackOverflow. However, one of the comments below shows it can lead to...
Difference between “read commited” and “repeatable read”
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Read committed is an isolation level that guarantees that any data read was committed at the moment is read. It simply restricts the reader from seeing any intermediate, uncommitted, 'dirty' read. It makes no promise whatsoever th...
JavaScript checking for null vs. undefined and difference between == and ===
...ypes are the same, it does exactly what == does.
Type coercion uses quite complex rules and can have surprising results (for instance, "" == 0 is true).
More in the spec:
Abstract Equality Comparison (==, also called "loose" equality)
Strict Equality Comparison (===)
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