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Servlet for serving static content
...fied the this row: this.basePath = getServletContext().getRealPath(getInitParameter("basePath")); And replaced it with: this.basePath = getInitParameter("basePath");
– Yossi Shasho
Aug 15 '12 at 7:39
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When do you use map vs flatMap in RxJava?
...vable and emits it.
Say for example we've a method titleCase(String inputParam) that returns Titled Cased String object of the input param. The return type of this method can be String or Observable<String>.
If the return type of titleCase(..) were to be mere String, then you'd use map(s -...
How to return smart pointers (shared_ptr), by reference or by value?
...void
needless copies:
get_names(std::vector<std::string>& out_param );
...
std::vector<std::string> names;
get_names( names );
Unfortunately, this approach is far from ideal.
The code grew by 150%
We’ve had to drop const-ness because we’re mutating names.
As ...
Are there benefits of passing by pointer over passing by reference in C++?
...
A pointer can receive a NULL parameter, a reference parameter can not. If there's ever a chance that you could want to pass "no object", then use a pointer instead of a reference.
Also, passing by pointer allows you to explicitly see at the call site w...
Asynctask vs Thread in android
...Invoked on the UI thread before the task is executed
doInbackground(Params..)
Invoked on the background thread immediately after onPreExecute()
finishes executing.
onProgressUpdate(Progress..)
Invoked on the UI thread after a call to publishProgress(Progress...).
onPos...
How to display unique records from a has_many through relationship?
...uite useful. Here's the code
OrdersController#show
@order = Order.find(params[:id])
@order_items_by_photo = @order.order_items.group_by(&:photo)
@order_items_by_photo then looks something like this:
=> {#<Photo id: 128>=>[#<OrderItem id: 2, photo_id: 128>, #<OrderIt...
Automapper - how to map to constructor parameters instead of property setters
...s a treat for me; AutoMapper currently doesn't like constructors where all parameters are optional, so I just use .ConstructUsing(x => new MyClass());
– David Keaveny
Apr 11 '11 at 23:56
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What's the difference between std::move and std::forward
...sing it.
std::forward has a single use case: to cast a templated function parameter (inside the function) to the value category (lvalue or rvalue) the caller used to pass it. This allows rvalue arguments to be passed on as rvalues, and lvalues to be passed on as lvalues, a scheme called "perfect fo...
Split (explode) pandas dataframe string entry to separate rows
...ne split
value per row. Filters rows where the column is missing.
Params
------
df : pandas.DataFrame
dataframe with the column to split and expand
column : str
the column to split and expand
sep : str
the string used to split the column's values
...
Do DOM tree elements with ids become global variables?
...ed instances of a name attribute, like control-names in form input fields, parameter names in <param> or metadata type in <meta>. ‘Identifying’ names are the ones that should should be avoided in favour of id.
...