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Using a strategy pattern and a command pattern
...sign patterns encapsulate an algorithm and decouple implementation details from their calling classes. The only difference I can discern is that the Strategy pattern takes in parameters for execution, while the Command pattern doesn't.
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What is the most pythonic way to check if an object is a number?
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Use Number from the numbers module to test isinstance(n, Number) (available since 2.6).
>>> from numbers import Number
... from decimal import Decimal
... from fractions import Fraction
... for n in [2, 2.0, Decimal('2.0'), co...
Finding the mode of a list
...unter supplied in the collections package which has a mode-esque function
from collections import Counter
data = Counter(your_list_in_here)
data.most_common() # Returns all unique items and their counts
data.most_common(1) # Returns the highest occurring item
Note: Counter is new in python 2.7...
Rename a dictionary key
...
wim's answer in its initial revision from 2013, there have only been additions since. The orderedness only comes from OP's criterion.
– Andras Deak
Feb 10 '18 at 23:30
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How do you know what to test when writing unit tests? [closed]
...You are doing the right
thing, remember this and it will help
stop you from giving up.
Start ready for a challenge. It is quite hard to start getting into
testing. Expect a challenge, but
remember – challenges can be overcome.
Only Test For What You Expect
I had real problem...
Why git AuthorDate is different from CommitDate?
...stackoverflow.com%2fquestions%2f11856983%2fwhy-git-authordate-is-different-from-commitdate%23new-answer', 'question_page');
}
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Missing artifact com.microsoft.sqlserver:sqljdbc4:jar:4.0
... artifact available via any maven repository. You need to download the jar from the Microsoft website, and then manually install it into your local maven repository.
You can do this with the following maven command:
mvn install:install-file -Dfile=sqljdbc4.jar -DgroupId=com.microsoft.sqlserver -Da...
How does Facebook disable the browser's integrated Developer Tools?
...ain trick.
Epilogue: The Chrome team decided that defeating the console from user-side JS was a bug and fixed the issue, rendering this technique invalid. Afterwards, additional protection was added to protect users from self-xss.
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What is the difference between Swing and AWT?
...ross platforms - for instance, they may try to make calls into native code from Java.
Because AWT uses native GUI widgets, your OS knows about them and handles putting them in front of each other, etc., whereas Swing widgets are meaningless pixels within a window from your OS's point of view. Swing...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
...ome example java code for making md5 hashes. One part converts the results from bytes to a string of hex digits:
28 Answers...