You can access the real data type of interface with Type Assertion.
interfaceVariable.(DataType)
Example of struct MyType which implement interface Subber:
package main
import (
"fmt"
)
type Subber interface {
Sub(a, b int) int
}
type MyType struct {
Msg stri...
To run macros and maintain the security Office applications provide against malicious code, it is necessary to digitally sign the VBAProject.OTM from the VBA editor > Tools > Digital Signature.
Office comes with a utility to create a self-signed digital certificate that you can employ on th...
Filetype plugins for foo filetype are sourced in that order:
1. $HOME/.vim/ftplugin/foo.vim. Be careful with what you put in that file as it may be overridden by $VIMRUNTIME/ftplugin/foo.vim -- under windows, it'll be instead $HOME/vimfiles/ftplugin/foo.vim
2. $VIMRUNTIME/ftplugin/foo.vim. Like ev...
Having culture-specific URLs can be beneficial in terms of SEO.
E.g. English version of the following page:
http://www.mydomain.com/insurance
Would translate into:
http://www.mydomain.nl/verzekering
Instead of:
http://www.mydomain.nl/nl-nl/insurance
There are more approaches of achievin...
For anything below 1.9
SpawnEgg egg = new SpawnEgg(EntityType.CREEPER);
ItemStack creeperEgg = egg.toItemStack(5);
For 1.9 and above
In versions 1.9 and higher, Spigot does not have an implementation for creating spawn eggs without using NMS. To accomplish this, you can use a small custom cl...
class Functor f where
fmap :: (a -> b) -> f a -> f b
One way of looking at it is that fmap lifts a function of values into a function of values in a context f.
A correct instance of Functor should satisfy the functor laws, though these are not enforced by the compiler:
fmap id = i...
The Data.Functor module contains two combinators, <$ and $>, which ignore all of the values contained in a functor, replacing them all with a single constant value.
infixl 4 <$, $>
<$ :: Functor f => a -> f b -> f a
(<$) = fmap . const
$> :: Functor f => f a ...
Steps to create "Hello, World!" application in Oracle Application Express:
Log in to your workspace.
Click Application Builder. Application Builder page opens.
Click Create. Page with 4 application types appears. Page contains short help text about each application type.
Click Deskto...
Introduction
System Workbench for STM32 is a free IDE on Windows, Linux and OS X. Description from ST Microelectronics:
The System Workbench toolchain, called SW4STM32, is a free multi-OS
software development environment based on Eclipse, which supports the
full range of STM32 microcontrollers...
Introduction
C/C++ IDE for ARM development.
Atollic TrueSTUDIO® is tested and verified on the following Operating Systems:
Microsoft® Windows ®Vista (32-bit version)
Microsoft® Windows® Vista (64-bit version)
Microsoft® Windows® 7 (32-bit version)
Microsoft® Windows® 7 (64-bit version)
Micr...
Some of the queryFor* methods available in JdbcTemplate are useful for simple sql statements that perform CRUD operations.
Querying for Date
String sql = "SELECT create_date FROM customer WHERE customer_id = ?";
int storeId = jdbcTemplate.queryForObject(sql, java.util.Date.class, custom...
This is a simple RMI example with five Java classes and two packages, server and client.
Server Package
PersonListInterface.java
public interface PersonListInterface extends Remote
{
/**
* This interface is used by both client and server
* @return List of Persons
* @throws...
Lists as arguments are just another variable:
def func(myList):
for item in myList:
print(item)
and can be passed in the function call itself:
func([1,2,3,5,7])
1
2
3
5
7
Or as a variable:
aList = ['a','b','c','d']
func(aList)
a
b
c
d
Tkinter has three mechanisms for geometry management: place, pack, and grid.
The place manager uses absolute pixel coordinates.
The pack manager places widgets into one of 4 sides. New widgets are placed next to existing widgets.
The grid manager places widgets into a grid similar to a dynamicall...
