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AngularJS : What is a factory?
I've been doing a lot of work on Angular.js and overall I find it to be an interesting and powerful framework.
4 Answers
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Persistence unit as RESOURCE_LOCAL or JTA?
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resource_local vs JTA its about local transaction vs global transaction. It's about can we manage multiple resources under a single transaction.
CMT vs BMT its about who is opening and closing transaction - application developer or applica...
Possible to iterate backwards through a foreach?
...g), you cannot do it as efficiently as using a for loop.
Edit: Which generally means, when you are able to use a for loop, it's likely the correct method for this task. Plus, for as much as foreach is implemented in-order, the construct itself is built for expressing loops that are independent of e...
Error to use a section registered as allowDefinition='MachineToApplication' beyond application level
The top line in all of my aspx pages in my /portal/ directory has this error message, and I know it's a common one. I have googled this error message to no end, and I see a lot of posts telling me to configure the /portal/ folder as an application in IIS (which I have), and more posts telling me I ...
Does every Javascript function have to return a value?
...ow level, the return is translated into some sort of jump. If a function really returned nothing at all, there would be no way of knowing what and when to call the next function, or to call event handlers and the like.
So to recap: No, a JS function needn't return anything as far as your code goes....
Difference between ObservableCollection and BindingList
...se I've used both to notify for any add/delete change in Source, but I actually do not know when to prefer one over the other.
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Choose between ExecutorService's submit and ExecutorService's execute
...g the task to be invoked. The default UncaughtExceptionHandler, which typically prints the Throwable stack trace to System.err, will be invoked if no custom handler has been installed.
On the other hand, a Throwable generated by a task queued with submit() will bind the Throwable to the Future that...
How to exit git log or git diff [duplicate]
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community wiki
4 revs, 2 users 71%Fred Foo
2
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How can my iphone app detect its own version number?
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See stackoverflow.com/questions/6851660/version-vs-build-in-xcode-4 for a great explanation of Version vs Build numbers. Confirms that CFBundleShortVersionString what you'd normally want for 'version' and CFBundleVersion for Build number.
– Rory
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Database development mistakes made by application developers [closed]
...ng appropriate indices
This is a relatively easy one but still it happens all the time. Foreign keys should have indexes on them. If you're using a field in a WHERE you should (probably) have an index on it. Such indexes should often cover multiple columns based on the queries you need to execut...