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Specifying rails version to use when creating a new application
...p 20 '11 at 16:23
Paweł Gościcki
7,05755 gold badges5555 silver badges7474 bronze badges
answered Jan 16 '09 at 23:51
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Should a .sln be committed to source control?
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I think it's clear from the other answers that solution files are useful and should be committed, even if they're not used for official builds. They're handy to have for anyone using Visual Studio features like Go To Definition/Dec...
How can I detect if the user is on localhost in PHP?
...server it resides on? If I remember correctly, PHPMyAdmin does something like this for security reasons.
9 Answers
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What does default(object); do in C#?
Googling is only coming up with the keyword, but I stumbled across some code that says
8 Answers
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Do I cast the result of malloc?
...s are not very easy to read (especially if the pointer type is long).
It makes you repeat yourself, which is generally bad.
It can hide an error if you forgot to include <stdlib.h>. This can cause crashes (or, worse, not cause a crash until way later in some totally different part of the code)...
JSON: why are forward slashes escaped?
... JSON in a <script> tag, which doesn't allow </ inside strings, like Seb points out.
Some of Microsoft's ASP.NET Ajax/JSON API's use this loophole to add extra information, e.g., a datetime will be sent as "\/Date(milliseconds)\/". (Yuck)
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How to empty a list?
...example:
lst1 = [1, 2, 3]
lst2 = lst1
del lst1[:]
print(lst2)
For the sake of completeness, the slice assignment has the same effect:
lst[:] = []
It can also be used to shrink a part of the list while replacing a part at the same time (but that is out of the scope of the question).
Note that ...
Test whether a list contains a specific value in Clojure
...ains?... supposedly one of the top five FAQs re: Clojure.
It does not check whether a collection contains a value; it checks whether an item could be retrieved with get or, in other words, whether a collection contains a key. This makes sense for sets (which can be thought of as making no distincti...
'POCO' definition
...her answers have stated, it is technically "Plain Old CLR Object" but I, like David Arno comments, prefer "Plain Old Class Object" to avoid ties to specific languages or technologies.
TO CLARIFY: In other words, they don’t derive from
some special base class, nor do they return any special type...
Copy object values in Visual Studio debug mode
...'s possible to hover over variables to show their value and then right-click to "Copy", "Copy Expression" or "Copy Value".
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