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Memory footprint of Haskell data types
... or is it possible to estimate memory requirements of a compound data type from its components?
2 Answers
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Is it considered bad practice to perform HTTP POST without entity body?
I need to invoke a process which doesn't require any input from the user, just a trigger. I plan to use POST /uri without a body to trigger the process. I want to know if this is considered bad from both HTTP and REST perspectives?
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How to forward declare a C++ template class?
...and run. Are you sure about what you are claiming? Can you provide a quote from the standard?
– olek stolar
Aug 14 at 16:56
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how to add records to has_many :through association in rails
...ay' depends on your needs and what feels most comfortable. Confusion comes from differences ActiveRecord's behavior of the new and create methods and the << operator.
The new Method
new will not add an association record for you. You have to build the House and Agent records yourself:
hous...
How to change variables value while debugging with LLDB in Xcode?
...t; ( --dynamic-value <boolean> )
Upcast the value resulting from the expression to its dynamic type
if available.
-f <format> ( --format <format> )
Specify a format to be used for display.
-o ( --object-description )
Print the object descr...
AngularJS : What is a factory?
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From what I understand they are all pretty much the same. The major differences are their complexities. Providers are configurable at runtime, factories are a little more robust, and services are the simplest form.
Check out...
Providing a default value for an Optional in Swift?
...t need to specify T for the method. That actually overrides the existing T from Optional. You can just do: func getOrElse(defaultValue: T) -> T then T refers to the real value type of the optional and you don't have to type check it
– drewag
Jun 7 '14 at 18:...
Start service in Android
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Java code for start service:
Start service from Activity:
startService(new Intent(MyActivity.this, MyService.class));
Start service from Fragment:
getActivity().startService(new Intent(getActivity(), MyService.class));
MyService.java:
import android.app.Service...
What is the template binding vs binding?
...ter understand the concept.
In WPF every control is more or less detached from its presentation. You can always change the template of controls and make it look completely different. A button works as expected with a ControlTemplate only consisting of a Rectangle for example. Now sometimes it is ne...
What's the difference between parenthesis $() and curly bracket ${} syntax in Makefile?
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The Basics of Variable References section from the GNU make documentation state no differences:
To substitute a variable's value, write a dollar sign followed by the
name of the variable in parentheses or braces: either $(foo) or
${foo} is a valid reference t...