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MVC Vs n-tier architecture
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N-tier architecture usually has each layer separated by the network. I.E. the presentation layer is on some web servers, then that talks to backend app servers over the network for business logic, then that talks to a database server, again over the network, and maybe the app ...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
...not imply that using the same format specifier means that the data written by a [f]printf() can be read by [f]scanf(). In general, using the same format specifier for scanf() that was used by printf() will not successfully read the data. For example, space padding that can be inserted by a prinf()...
What is aria-label and how should I use it?
...Vox would be a good place to start? I've never used it though. They work by reading the screen aloud to the user, taking cues from the HTML (e.g. an h1 should be emphasised more than a p, a is clearly a link, form` indicates somewhere to enter information, aria-* attributes give further clues to ...
Rebasing remote branches in Git
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It comes down to whether the feature is used by one person or if others are working off of it.
You can force the push after the rebase if it's just you:
git push origin feature -f
However, if others are working on it, you should merge and not rebase off of master.
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Hibernate - A collection with cascade=”all-delete-orphan” was no longer referenced by the owning ent
...he "A collection with cascade="all-delete-orphan" was no longer referenced by the owning entity instance" exception. Do you have an idea why? Thank you very much!
– ovdsrn
Dec 12 '12 at 10:42
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ARC and bridged cast
...FTypeRef while transferring it over to ARC. This could also be represented by id someObj = (__bridge <NSType>) op; CFRelease(op);
(__bridge_retained <CFType>) op or alternatively CFBridgingRetain(op) is used to hand an NSObject over to CF-land while giving it a +1 retain count. You shoul...
How do I determine whether an array contains a particular value in Java?
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Creating then the collection is going to be dominated by code loading time (which is technically O(n) but practically constant).
– Tom Hawtin - tackline
Mar 7 '12 at 13:23
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Implementing Comments and Likes in database
.... and I wonder how Django ORM will handle to map it (or how I will do that by myself...but, that is the other problem ;) ) But, can you explain me, cause I think I do not understand it properly - what you have drawn for me (thanks!) is the third approach you mentioned?
– Kokos...
How can I distinguish whether Switch,Checkbox Value is changed by user or programmatically (includin
How to implement method isNotSetByUser() ?
16 Answers
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How do I navigate in the results of Diff
...it should show you the command shortcuts for doing page up/page down etc.
By default git looks at the $GIT_PAGER, then $PAGER environment variable to determine the program to be used for showing you the output of diff, log, show etc.
On new (linux) systems the default $PAGER used (even when it is ...