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Design patterns to avoid [closed]
...s and principles that lay the foundation for most of the patterns. In fact one of my favorite books on 'design patterns' stresses this by reiterating on what principles are applicable on the pattern in question. They are simple enough to be useful than patterns in terms of relevance. Some of the pri...
What is the difference between a var and val definition in Scala?
...because I can't replace the object created on the line above with this new one.
x.value = new A(6) // Doesn't work, because I can't replace the object assigned to B.value for a new one.
x.value.value = 6 // Works, because A.value can receive a new object.
}
}
So, even though we can't cha...
Any way to break if statement in PHP?
...d have "1 way in" and "1 way out". Multiple RETURNS is sloppy and error prone.
– Old Man Walter
May 31 '18 at 6:17
@O...
Should I check in node_modules to git when creating a node.js app on Heroku?
...sm that can verify contents rather than versions.
Shannon and Steven mentioned this before but I think, it should be part of the accepted answer.
Update
The source listed for the below recommendation has been updated. They are no longer recommending the node_modules folder be committed.
Usually,...
Mimicking sets in JavaScript?
...S6 compatibility table to see the current status for browser availability.
One advantage of the built-in Set object is that it doesn't coerce all keys to a string like the Object does so you can have both 5 and "5" as separate keys. And, you can even use Objects directly in the set without a string...
How to make good reproducible pandas examples
...bits the issue you are facing.
* Every rule has an exception, the obvious one is for performance issues (in which case definitely use %timeit and possibly %prun), where you should generate (consider using np.random.seed so we have the exact same frame): df = pd.DataFrame(np.random.randn(100000000,...
Uses for Optional
...Java 8 now for 6+ months or so, I'm pretty happy with the new API changes. One area I'm still not confident in is when to use Optional . I seem to swing between wanting to use it everywhere something may be null , and nowhere at all.
...
Calculating a directory's size using Python?
...ath.getsize(fp)
return total_size
print(get_size(), 'bytes')
And a oneliner for fun using os.listdir (Does not include sub-directories):
import os
sum(os.path.getsize(f) for f in os.listdir('.') if os.path.isfile(f))
Reference:
os.path.getsize - Gives the size in bytes
os.walk
os.path.i...
What is the list of valid @SuppressWarnings warning names in Java?
...: Is it possible to add types of warnings in eclipse? The problem is that one of our team members uses IntelliJ, and that IDE has other suppress warning types that give warnings in Eclipse :) In Eclipse Indigo you can set in the preferences: Ignore unused SuppressWarnings tokens, but that doesn't ...
Git log to get commits only for a specific branch
...your branch to another branch, so know your branches and then choose which one to compare to.
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