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Using global variables in a function
... each function that assigns a value to it:
globvar = 0
def set_globvar_to_one():
global globvar # Needed to modify global copy of globvar
globvar = 1
def print_globvar():
print(globvar) # No need for global declaration to read value of globvar
set_globvar_to_one()
print_globvar...
AngularJS : What is a factory?
...App = angular.module('myApp', []);
//service style, probably the simplest one
myApp.service('helloWorldFromService', function() {
this.sayHello = function() {
return "Hello, World!";
};
});
//factory style, more involved but more sophisticated
myApp.factory('helloWorldFromFactory',...
iOS - Dismiss keyboard when touching outside of UITextField
...
So without having to define any methods, a one-liner would be: [self.view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self.view action:@selector(endEditing:)]];
– Subhas
Aug 11 '14 at 7:11
...
Look up all descendants of a class in Ruby
...= 3, you have two options in place. Use .descendants if you want more than one level depth of children classes, or use .subclasses for the first level of child classes.
Example:
class Animal
end
class Mammal < Animal
end
class Dog < Mammal
end
class Fish < Animal
end
Animal.subclasse...
Get the latest record from mongodb collection
... also how last record is fetched when your are limiting the output to just one document and it must be the top document in collection.
– kailash yogeshwar
Nov 23 '16 at 16:58
...
How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?
I would like to have 2 separate Layouts in my application. Let's say one is for the Public section of the website and the other is for the Member side.
...
What is the main difference between Inheritance and Polymorphism?
...iece of mind. I know there are a number of similar questions to this but, none I have seen which provide a definitive answer.
...
Install tkinter for Python
...
How does one install tkinter from sources? I have tcl/tk, verified using wish. I can't find the source tarball for tkinter.
– lapin
Mar 6 '17 at 18:19
...
Pass Method as Parameter using C#
...
It's very userfully. With this way, can use one or many parameters. I guess, the most updated answer is this.
– bafsar
Jan 23 '15 at 16:53
...
Loop through an array of strings in Bash?
...
do
echo "$i"
# or do whatever with individual element of the array
done
# You can access them using echo "${arr[0]}", "${arr[1]}" also
Also works for multi-line array declaration
declare -a arr=("element1"
"element2" "element3"
"element4"
)...