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What is the “right” way to iterate through an array in Ruby?
...tween an array and a hash (maybe I'm naive, but this seems obviously right to me), and to iterate through either you just do
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How do you specify that a class property is an integer?
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I think there is not a direct way to specify whether a number is integer or floating point. In the TypeScript specification section 3.2.1 we can see:
"...The Number primitive type corresponds to the similarly named JavaScript primitive type and represents...
What Makes a Good Unit Test? [closed]
I'm sure most of you are writing lots of automated tests and that you also have run into some common pitfalls when unit testing.
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How to use bootstrap-theme.css with bootstrap 3?
...bootstrap.com , I noticed that there is a separate css file for theme. How to make use of it? Please explain?
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Why doesn't Git ignore my specified file?
I added the following line to .gitignore :
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What are the differences between the threading and multiprocessing modules?
I am learning how to use the threading and the multiprocessing modules in Python to run certain operations in parallel and speed up my code.
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How to load JAR files dynamically at Runtime?
Why is it so hard to do this in Java? If you want to have any kind of module system you need to be able to load JAR files dynamically. I'm told there's a way of doing it by writing your own ClassLoader , but that's a lot of work for something that should (in my mind at least) be as easy as calling ...
What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...hism relatively late in my programming life, and perhaps this contributes to my being utterly fascinated by it. It implies that for every programming concept there exists a precise analogue in formal logic, and vice versa. Here's a "basic" list of such analogies, off the top of my head:
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Download a file with Android, and showing the progress in a ProgressDialog
I am trying to write a simple application that gets updated. For this I need a simple function that can download a file and show the current progress in a ProgressDialog . I know how to do the ProgressDialog , but I'm not sure how to display the current progress and how to download the file in t...
What is the dependency inversion principle and why is it important?
...d never depend upon details. Details should depend upon abstractions.
As to why it is important, in short: changes are risky, and by depending on a concept instead of on an implementation, you reduce the need for change at call sites.
Effectively, the DIP reduces coupling between different pieces...