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What's the difference between belongs_to and has_one?
...dates :foreign_key, presence: true, uniqueness: true
add a database unique index on the foreign key.
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In HTML5, is the localStorage object isolated per page/domain?
...ou want (prefix is not required).
To get a key you can use the method key(index) such as
localStorage.key(0);
There was an object called globalStorage before where you could have multiple localStorages, but it's been deprecated from the specs
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Getting URL hash location, and using it in jQuery
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var url = "http://example.com/file.htm#foo";
var hash = url.substring(url.indexOf('#')); // '#foo'
Advice: Be aware that the user can change the hash as he wants, injecting anything to your selector, you should check the hash before using it.
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Freeze the top row for an html table only (Fixed Table Header Scrolling) [duplicate]
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may also need to add z-index to make sure "sticky" th is on top of table tr's
– yob
Jun 19 at 15:52
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What's the best CRLF (carriage return, line feed) handling strategy with Git?
..., be very careful when using dos2unix - there is a risk of corrupting .git/index and we don't need to apply it to every file. It's better using something like find ./ -name "*.html" and specifying which files you want to apply it to.
– cregox
Oct 4 '13 at 20:43...
Why is the use of tuples in C++ not more common?
...ary. But it's usually limited to a couple of situations, like an N-element index or when using multimaps to tie the range iterator pairs. And it's usually in a very limited scope.
It's all very ugly and hacky looking when compared to something like Haskell or Python. When C++0x gets here and we g...
What is a loop invariant?
...stance consists of a list L(1..n) of
elements. The output consists of an index i such that L(i) has maximum
value. If there are multiple entries with this same value, then any
one of them is returned.
2) Basic Steps: You decide on the two-finger method. Your right finger
runs down the l...
Can I get a patch-compatible output from git-diff?
...is (I think) from using git reset -- the relationships among the repo, the index, and the working area are the issue.
– Malvolio
Sep 5 '14 at 19:39
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What actually causes a Stack Overflow error? [duplicate]
... JVM throws an error. Just like it would do if you were trying to write at index N of an array of length N. No memory corruption can happen. The stack can not write into the heap.
A StackOverflowError is to the stack what an OutOfMemoryError is to the heap: it simply signals that there is no more m...
RESTful web service - how to authenticate requests from other services?
... The tutorial link doesn't lead to a tutorial article but to some Java index page on the Oracle site...
– Marjan Venema
Nov 11 '13 at 10:14
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