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What is “loose coupling?” Please provide examples
...pping cart application that uses a CartContents class to keep track of the items in the shopping cart and an Order class for processing a purchase. The Order needs to determine the total value of the contents in the cart, it might do that like so:
Tightly Coupled Example:
public class CartEntry
{
...
Print all properties of a Python Class [duplicate]
... 'Alot'}
# now dump this in some way or another
print(', '.join("%s: %s" % item for item in attrs.items()))
If you want to store Python objects on the disk you should look at shelve — Python object persistence.
share
...
Xcode “The private key for is not installed on this mac - distributing”
... @Fabian Boulegue I think the votes indicate that this is the best answer. If you could mark this as accepted that would be great :)
– Ben Visness
Jun 24 '15 at 20:22
...
Serialize form data to JSON [duplicate]
...
Use:
var config = {};
jQuery(form).serializeArray().map(function(item) {
if ( config[item.name] ) {
if ( typeof(config[item.name]) === "string" ) {
config[item.name] = [config[item.name]];
}
config[item.name].push(item.value);
} else {
co...
How do I use arrays in C++?
...f elements.
With deep C experience it’s natural to write …
#define N_ITEMS( array ) (sizeof( array )/sizeof( array[0] ))
Since an array decays to pointer to first element where needed, the
expression sizeof(a)/sizeof(a[0]) can also be written as
sizeof(a)/sizeof(*a). It means the same, and...
Convert a list to a dictionary in Python
...hension for this pretty easily:
a = ['hello','world','1','2']
my_dict = {item : a[index+1] for index, item in enumerate(a) if index % 2 == 0}
This is equivalent to the for loop below:
my_dict = {}
for index, item in enumerate(a):
if index % 2 == 0:
my_dict[item] = a[index+1]
...
How to dynamically create generic C# object using reflection? [duplicate]
...our classes ...
var d1 = typeof(Task<>);
Type[] typeArgs = { typeof(Item) };
var makeme = d1.MakeGenericType(typeArgs);
object o = Activator.CreateInstance(makeme);
Per your edit: For that case, you can do this ...
var d1 = Type.GetType("GenericTest.TaskA`1"); // GenericTest was my namesp...
Select TreeView Node on right click before displaying ContextMenu
...
One of the possible solutions is to use e.OriginalSource and find TreeViewItem using the VisualTreeHelper:
private void OnPreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
TreeViewItem treeViewItem = VisualUpwardSearch(e.OriginalSource as DependencyObject);
if (treeView...
Android - drawable with rounded corners at the top only
...ist xmlns:android="http://schemas.android.com/apk/res/android">
<item android:bottom="-20dp" android:left="-20dp">
<shape android:shape="rectangle">
<solid android:color="@color/white" />
<corners android:radius="20dp" />
</s...
ListView inside ScrollView is not scrolling on Android
...View, the content is scrollable. But the problem comes when there are more items in ListViews (ones in tabs), I am not able to scroll the ListView, even if there are more items.
...