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What is the meaning of “this” in Java?
Normally, I use this in constructors only.
21 Answers
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How to read a text file into a list or an array with Python
I am trying to read the lines of a text file into a list or array in python. I just need to be able to individually access any item in the list or array after it is created.
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Nullable Foreign Key bad practice?
Let's say you have a table Orders with a foreign key to a Customer Id. Now, suppose you want to add an Order without a Customer Id, (whether that should be possible is another question) you would have to make the foreign key NULL... Is that bad practice or would you rather work with a link table bet...
__proto__ VS. prototype in JavaScript
What are the differences between __proto__ and prototype ?
30 Answers
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What is the difference between include and extend in Ruby?
Just getting my head around Ruby metaprogramming. The mixin/modules always manage to confuse me.
6 Answers
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Why does Maven have such a bad rep? [closed]
There is a lot of talk on the internet about how Maven is bad. I have been using some features of Maven for a few years now and the most important benefit in my view is the dependency management.
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How is an overloaded method chosen when a parameter is the literal null value?
I came across this question in a quiz,
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How do I merge a list of dicts into a single dict?
How can I turn a list of dicts like this
10 Answers
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What do (lambda) function closures capture?
Recently I started playing around with Python and I came around something peculiar in the way closures work. Consider the following code:
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Python: TypeError: cannot concatenate 'str' and 'int' objects [duplicate]
I have this python program that adds strings to integers:
9 Answers
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