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What is the best (idiomatic) way to check the type of a Python variable? [duplicate]
...w if a variable in Python is a string or a dict. Is there anything wrong with the following code?
10 Answers
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What do 3 dots next to a parameter type mean in Java?
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It means that zero or more String objects (or a single array of them) may be passed as the argument(s) for that method.
See the "Arbitrary Number of Arguments" section here: http://java.sun.com/docs/books/tutorial/java/javaOO...
Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
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As always with these questions, the JLS holds the answer. In this case §15.26.2 Compound Assignment Operators. An extract:
A compound assignment expression of the form E1 op= E2 is equivalent to E1 = (T)((E1) op (E2)), where ...
Can you supply arguments to the map(&:method) syntax in Ruby?
You're probably familiar with the following Ruby shorthand ( a is an array):
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How do I reset the scale/zoom of a web app on an orientation change on the iPhone?
When I start my app in portrait mode, it works fine. Then I rotate into landscape and it's scaled up. To get it to scale correctly for the landscape mode I have to double tap on something twice, first to zoom all the way in (the normal double tap behavior) and again to zoom all the way out (again, ...
What does it mean to inflate a view from an xml file?
...ed the development guide but still wasn't able to pick up a sense for what it means. If someone could provide a very simple example, it'd be much appreciated.
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Git: How to remove file from index without deleting files from any repository
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I do not think a Git commit can record an intention like “stop tracking this file, but do not delete it”.
Enacting such an intention will require intervention outside Git in any repositories that merge (or rebase onto) a commit that delet...
What is the meaning of “$” sign in JavaScript
In the following JavaScript code there is a dollar ( $ ) sign. What does it mean?
7 Answers
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nodeJs callbacks simple example
...mple of nodeJs callbacks, I have already searched for the same on many websites but not able to understand it properly, Please give me a simple example.
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How to differ sessions in browser-tabs?
...follow
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edited Jun 8 '15 at 15:54
answered Aug 2 '12 at 18:39
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