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How do I check if a variable exists?
...nd how do you turn the name of variable that possibly doesn't exist into a string?
– SilentGhost
May 9 '09 at 13:27
16
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Difference between 2 dates in SQLite
...day(DateCreated). The former does not account for DST days and will add an extra hour to created dates in Mar-Nov. The latter actually does account for it. stackoverflow.com/questions/41007455/…
– vapcguy
Dec 8 '16 at 19:36
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Using Font Awesome icon for bullet points, with a single list item element
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You don't need the extra markup: li:before can have a different font-family than the li itself.
– cimmanon
Sep 17 '12 at 23:48
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How does deriving work in Haskell?
...> "parm"
where toL (x:y) = (toLower x):y
unCapalize :: [Char] -> [Char]
unCapalize (x:y) = (toLower x):y
And some borrowed helper code taken from Syb III / replib 0.2.
typeInfo :: DecQ -> Q (Name, [Name], [(Name, Int)], [(Name, [(Maybe Name, Type)])])
typeInfo m =
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Should private helper methods be static if they can be static
...ate static void doSomethingStatic(int arg) { }
public static void main(String[] args) {
// do it twice both ways
doSomethingStatic(0);
doSomethingStatic(0);
TestBytecodeSize t = new TestBytecodeSize();
t.doSomething(0);
t.doSomething(0);
}
}
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Convert Java Array to Iterable
... +1 I do something similar to create an Iterator<Character> from a String. Implementing your own Iterator seems like the only way to avoid needlessly iterating through all of the values to convert from the object type to the primitive type (via Guava's Ints.asList() for example), just to be ...
C++ sorting and keeping track of indexes
...mparator, or automatically reorder v in the sort_indexes function using an extra vector.
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What is the http-header “X-XSS-Protection”?
...;script src="framebuster.js" and the browser will automatically remove the string <script src="framebuster.js" from the actual page source. Note that the rest of the page continues run and the attacker just removed this part of page security. In practice, any JS in the page source can be modified...
Immutable vs Unmodifiable collection
...ects themselves may still be mutable - creating an immutable collection of StringBuilder doesn't somehow "freeze" those objects.
Basically, the difference is about whether other code may be able to change the collection behind your back.
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How to “pretty” format JSON output in Ruby on Rails
...nController::Renderers.add :json do |json, options|
unless json.kind_of?(String)
json = json.as_json(options) if json.respond_to?(:as_json)
json = JSON.pretty_generate(json, options)
end
if options[:callback].present?
self.content_type ||= Mime::JS
"#{options[:callback]}(#{jso...