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Check if object is file-like in Python
..., e.g. have a read() and a write method(), but have a different implementation. It is and realization of the Duck Typing concept.
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Difference between case object and object
...ar classes in that they get:
pattern matching support
default implementations of equals and hashCode
default implementations of serialization
a prettier default implementation of toString, and
the small amount of functionality that they get from automatically inheriting from scala.Product.
Pa...
C++ preprocessor __VA_ARGS__ number of arguments
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I usually use this macro to find a number of params:
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
Full example:
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/size...
How do I get the current absolute URL in Ruby on Rails?
...ApplicationController to return the current URL and allow merging in other parameters
# https://x.com/y/1?page=1
# + current_url( :page => 3 )
# = https://x.com/y/1?page=3
def current_url(overwrite={})
url_for :only_path => false, :params => params.merge(overwrite)
end
Example Usage...
How to serialize an object into a string
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Sergio:
You should use BLOB. It is pretty straighforward with JDBC.
The problem with the second code you posted is the encoding. You should additionally encode the bytes to make sure none of them fails.
If you still want to ...
Open an IO stream from a local file or url
... contains either a path to a local file or a url and open it as a readable IO stream.
1 Answer
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What is the difference between Pan and Swipe in iOS?
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By definition, a swipe gesture is necessarily also a pan gesture -- both involve translational movement of touch points. The difference is in the recognizer semantics: a pan recognizer looks for the beginning of translational movement ...
Comparing strings with == which are declared final in Java
I have a simple question about strings in Java. The following segment of simple code just concatenates two strings and then compares them with == .
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How to pass object with NSNotificationCenter
... @Kairos because it isn't designed to use like this. the object param in postNotificationName should meaning the one which send this notification.
– xi.lin
Jul 9 '15 at 3:49
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change text of button and disable button in iOS
How do you change the text of the button and disable a button in iOS?
8 Answers
8
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