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Is there any difference between a GUID and a UUID?
...er case characters and are case insensitive on input". This can lead to incompatibilities between code libraries (such as this).
(Original answer follows)
Treat them as a 16 byte (128 bits) value that is used as a unique value. In Microsoft-speak they are called GUIDs, but call them UUIDs when no...
What is the best method of handling currency/money?
...lly convert to and from BigDecimals everywhere, which will probably just become a pain.
As pointed out by mcl, to print the price, use:
number_to_currency(price, :unit => "€")
#=> €1,234.01
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In MySQL, can I copy one row to insert into the same table?
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How do I get a value of datetime.today() in Python that is “timezone aware”?
...alue of datetime.today() to calculate how long ago something was. But it complains:
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Difference between a user and a schema in Oracle?
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How to check iOS version?
...) {}
In Objective-C, you need to check the system version and perform a comparison.
[[NSProcessInfo processInfo] operatingSystemVersion] in iOS 8 and above.
As of Xcode 9:
if (@available(iOS 9, *)) {}
The full answer …
In Objective-C, and Swift in rare cases, it's better to avoid relying...
Why is there no String.Empty in Java?
...in memory at runtime. I'm not entirely sure why String.EMPTY would save on compile time, in fact I think it would be the latter.
Especially considering Strings are immutable, it's not like you can first get an empty String, and perform some operations on it - best to use a StringBuilder (or StringB...
Is it safe to push_back an element from the same vector?
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Recursive lambda functions in C++11
...++11. I am writing the following recursive lambda function, but it doesn't compile.
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Intent - if activity is running, bring it to front, else start a new one (from notification)
...you should be the accepted answer. Differences are here: developer.android.com/guide/topics/manifest/…
– user1032613
Jun 20 '14 at 16:08
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