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What does 'super' do in Python?
...om the parent class that follows Child in the instance's Method Resolution Order (MRO).
If the instance is a subclass of Child, there may be a different parent that comes next in the MRO.
Explained simply
When you write a class, you want other classes to be able to use it. super() makes it easi...
Transactions in REST?
...ple items to a shopping basket and then submit that basket to process the order, you can add Bob's account entry to the transaction wrapper and then Bill's account entry to the wrapper. When all the pieces are in place then you can POST/PUT the transaction wrapper with all the component pieces. ...
Restoring state of TextView after screen rotation?
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In order to retain data on orientation change you need to implement the two methods:
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// Read...
Eventual consistency in plain English
...ll act surprised when complex objects stored in separate documents like “orders” have less “order items” than expected, or maybe none at all. But it won’t happen often, or often enough so they’ll just march forward. They may not even hit the problem in development. Then, rather than r...
How can I position my div at the bottom of its container?
...ement seeks it's closest parent that is absolute or relatively position in order to determine it's position. If all fails it resorts to body (window). So hence the need for the parent to be relative.
– user17753
Jun 13 '12 at 18:46
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Is using Random and OrderBy a good shuffle algorithm?
...basically giving a random (hopefully unique!) number to each element, then ordering the elements according to that number.
I prefer Durstenfield's variant of the Fisher-Yates shuffle which swaps elements.
Implementing a simple Shuffle extension method would basically consist of calling ToList or T...
What do I need to read to understand how git works? [closed]
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For me, the following three resources were very, very helpful, in this order:
The Thing About Git explained why I should even care
Git Magic explained how to get started
Git The Basics [pdf] explained - graphically, and in detail - what happens when I add, remove, merge, etc.
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Visual Studio Project vs. Solution
...l be compiled into an executable program or web site, or else is needed in order to perform the compilation. A project also contains all the compiler settings and other configuration files that might be needed by various services or components that your program will communicate with.
You don't have ...
How do I set a variable to the output of a command in Bash?
...ing forks by using backgrounded long-running tasks
2nd Edit 2018-02-12:
In order to prevent multiple forks like
myPi=$(bc -l <<<'4*a(1)'
myRay=12
myCirc=$(bc -l <<<" 2 * $myPi * $myRay ")
or
myStarted=$(date -d "$(ps ho lstart 1)" +%s)
mySessStart=$(date -d "$(ps ho lstart $$)" +%...
Getting “NoSuchMethodError: org.hamcrest.Matcher.describeMismatch” when running test in IntelliJ 10.
...
Make sure the hamcrest jar is higher on the import order than your JUnit jar.
JUnit comes with its own org.hamcrest.Matcher class that is probably being used instead.
You can also download and use the junit-dep-4.10.jar instead which is JUnit without the hamcrest classes.
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