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Underscore vs Double underscore with variables and methods [duplicate]
... E.g.
from M import *
does not import objects whose name starts with an underscore.
single_trailing_underscore_: used by convention to avoid conflicts with Python keyword, e.g.
Tkinter.Toplevel(master, class_='ClassName')
__double_leading_underscore: when naming a class attribute,...
When to use LinkedList over ArrayList in Java?
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Summary ArrayList with ArrayDeque are preferable in many more use-cases than LinkedList. If you're not sure — just start with ArrayList.
LinkedList and ArrayList are two different implementations of the List interface. LinkedList implemen...
Why doesn't Mockito mock static methods?
... of static methods can cause. But I didn't really get to the bottom of why it is hard to mock static methods.
7 Answers
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JavaScript/jQuery to download file via POST with JSON data
I have a jquery-based single-page webapp. It communicates with a RESTful web service via AJAX calls.
14 Answers
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Collections.emptyMap() vs new HashMap()
What are some of the situations where I can use Collections.emptyMap() ? The Documentation says I can use this method if I want my collection to be immutable.
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HTTP response code for POST when resource already exists
...re objects. Those objects are fully constructed at client side, complete with object IDs that are permanent for the whole lifetime of the object.
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.htm vs .html ? Which file extension naming is more correct? [closed]
.... The choice is down to personal preference, provided you’re consistent with your file naming you won’t have a problem with either.
Depending on the configuration of the web server, one of the file types will take precedence over the other. This should not be an issue since it’s unlikely that...
Else clause on Python while statement
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The else clause is only executed when your while condition becomes false. If you break out of the loop, or if an exception is raised, it won't be executed.
One way to think about it is as an if/else construct with respect to the condition:
if condition:
handle_true()
e...
How to implement a good __hash__ function in python [duplicate]
When implementing a class with multiple properties (like in the toy example below), what is the best way to handle hashing?
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How do I use the conditional operator (? :) in Ruby?
How is the conditional operator ( ? : ) used in Ruby?
7 Answers
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