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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.
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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...
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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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...
How to find a Java Memory Leak
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Questioner here, I have got to say getting a tool that does not take 5 minutes to answer any click makes it a lot easier to find potential memory leaks.
Since people are suggesting several tools ( I only tried visual wm since I go...
Django optional url parameters
...
There are several approaches.
One is to use a non-capturing group in the regex: (?:/(?P<title>[a-zA-Z]+)/)?
Making a Regex Django URL Token Optional
Another, easier to follow way is to have multiple rules that matches your needs, all pointing to...
Solving “Who owns the Zebra” programmatically?
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One poster already mentioned that Prolog is a potential solution. This is true, and it's the solution I would use. In more general terms, this is a perfect problem for an automated inference system. Prolog is a logic progr...
Explanation of strong and weak storage in iOS5
...to it. Even if weak pointers point to it, once the last strong pointer is gone, the object will be deallocated, and all remaining weak pointers will be zeroed out.
Perhaps an example is in order.
Imagine our object is a dog, and that the dog wants to run away (be deallocated).
Strong pointers are...
What's your most controversial programming opinion?
...gs that don't warrant them. Just because something is new, or because someone respected has an opinion, doesn't mean it fits all :)
EDIT:
Just to clarify - I don't think people should ignore best practices, valued opinions etc. Just that people shouldn't just blindly jump on something without thin...