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Why does += behave unexpectedly on lists?
...ts += changes the object's value, whereas for immutable types like tuples, strings and integers a new object is returned instead (a += b becomes equivalent to a = a + b).
For types that support both __iadd__ and __add__ you therefore have to be careful which one you use. a += b will call __iadd__ a...
How to measure time taken by a function to execute
...etween the two "console.time"
console.timeEnd('someFunction')
Note: The string being pass to the time() and timeEnd() methods must match(for the timer to finish as expected).
console.time() documentations:
NodeJS documentation regarding
MDN (client-side) documentation
...
Define static method in source-file with declaration in header-file in C++
... refer to static variables of that class. So in your case,
static void CP_StringToPString( std::string& inString, unsigned char *outString);
Since your member function CP_StringToPstring is static, the parameters in that function, inString and outString should be declared as static too.
The ...
Adding data attribute to DOM
...
It also has to be a string - $('div').attr('data-info', ''+info.id)
– daviestar
Mar 17 '14 at 5:15
1
...
How to use RestSharp with async/await
...ask<T> instances. These Task<T> overloads have an added "Task" string added to their names, for example the Task<T> overload for ExecuteAsyncGet is called ExecuteGetTaskAsync<T>. For each of the new Task<T> overloads there is one method that does not require a Cancellat...
How to determine the encoding of text?
...ed')
sys.exit(1)
def bomType(file):
"""
returns file encoding string for open() function
EXAMPLE:
bom = bomtype(file)
open(file, encoding=bom, errors='ignore')
"""
f = open(file, 'rb')
b = f.read(4)
f.close()
if (b[0:3] == b'\xef\xbb\xbf'):
...
Why dict.get(key) instead of dict[key]?
...to False in a boolean context (i.e. a Falsey value), such as 0 or an empty string, '', then dictionary.get("bogus") or my_default would evaluate to my_default whereas dictionary.get("bogus", my_default) would return the Falsey value. So no, dictionary.get("bogus") or my_default is not equivalent to ...
How to use a custom comparison function in Python 3?
... you can set the locale to your language and use locale.strcoll to compare strings using your language's sorting rules.
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Calling virtual functions inside constructors
... System.out.println( "Derived: " + x );
}
public static void main( String args[] ) {
Derived d = new Derived( 5 );
}
}
// outputs: Derived 0
// Derived 5
// ... so much for final attributes never changing :P
As you see, calling a polymorphic (virtual in C++ terminology) m...
ViewParam vs @ManagedProperty(value = “#{param.id}”)
...n. Even a <h:message> can be attached.
Can be included as GET query string using includeViewParams attribute of <h:link> or includeViewParams=true request parameter in any URL.
Can be used on a @RequestScoped bean, but it requires the bean to be @ViewScoped if you want the view paramet...