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Performance of Arrays vs. Lists
...optimisation; arrays can be marginally faster if you use the indexer / for form - but IIRC believe it depends on the type of data in the array. But unless you need to micro-optimise, keep it simple and use List<T> etc.
Of course, this only applies if you are reading all of the data; a diction...
UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
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$window.unbind('scroll', onScroll);
}
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mysql - how many columns is too many?
...e tables, rows and columns, work within that constraint if you want max performance, mimic your objects for convenience at the sake of performance. So should every piece of information about a person be stored within the same row? no, break them out and group them into different tables (using my ex...
Passing an array by reference
...yArray)
^ Pass an array. Array decays to a pointer. Thus you lose size information.
void Func(int (*myFunc)(double))
^ Pass a function pointer. The function returns an int and takes a double. The parameter name is myFunc.
...
Running a Python script from PHP
...t a quick reminder for those trying to use shell_exec on a
unix-type platform and can't seem to get it to work. PHP executes as
the web user on the system (generally www for Apache), so you need to
make sure that the web user has rights to whatever files or
directories that you are trying to...
Python add item to the tuple
...
#1 form
a = ('x', 'y')
b = a + ('z',)
print(b)
#2 form
a = ('x', 'y')
b = a + tuple('b')
print(b)
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WPF User Control Parent
...u know why this is? The user control has a parent which is the containing form. How do I get a handle to this form?
– Peter Walke
Jun 5 '09 at 15:44
2
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Why does the CheckBoxFor render an additional input tag, and how can I get the value using the FormC
...pproach that both Ruby on
Rails and MonoRail use.
When you submit a form with a checkbox, the value is only posted if
the checkbox is checked. So, if you leave the checkbox unchecked then
nothing will be sent to the server when in many situations you would
want false to be sent instead....
Django template how to look up a dictionary value with a variable
...
Since I can't comment, let me do this in the form of an answer:
to build on culebrón's answer or Yuji 'Tomita' Tomita's answer, the dictionary passed into the function is in the form of a string, so perhaps use ast.literal_eval to convert the string to a dictionary fir...
What is difference between functional and imperative programming languages?
...a pure functional approach to problem solving. Functional programming is a form of declarative programming.
Advantages of Pure Functions:
The primary reason to implement functional transformations as pure functions is that pure functions are composable: that is, self-contained and stateless. These ...