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Why use Abstract Base Classes in Python?
...cause I am used to the old ways of duck typing in Python, I fail to understand the need for ABC (abstract base classes). The help is good on how to use them.
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Simple logical operators in Bash
I have a couple of variables and I want to check the following condition (written out in words, then my failed attempt at bash scripting):
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Difference between Lookup() and Dictionary(Of list())
...trying to wrap my head around which data structures are the most efficient and when / where to use which ones.
6 Answers
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When to catch java.lang.Error?
...ome stupid 3rd-party code throwing subclasses of Error, so you'll have to handle those as well.
By the way, I'm not sure it isn't possible to recover from OutOfMemoryError.
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Can I use break to exit multiple nested 'for' loops?
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AFAIK, C++ doesn't support naming loops, like Java and other languages do. You can use a goto, or create a flag value that you use. At the end of each loop check the flag value. If it is set to true, then you can break out of that iteration.
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Does Internet Explorer 8 support HTML 5?
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IE8 beta 2 supports two APIs from HTML5: cross-document messaging and non-SQL storage.
IE8 beta 2 doesn’t implement the HTML5 parsing algorithm or the new elements (no <canvas> or <video> support).
There are also bug fixes that align IE8 better with HTML5.
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Git Push Error: insufficient permission for adding an object to repository database
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Repair Permissions
After you have identified and fixed the underlying cause (see below), you'll want to repair the permissions:
cd /path/to/repo.git
sudo chgrp -R groupname .
sudo chmod -R g+rwX .
find . -type d -exec chmod g+s '{}' +
Note if you want everyone to be ...
Why is JavaScript called JavaScript, since it has nothing to do with Java? [closed]
...avaScript, was originally named Mocha, later it was renamed to LiveScript, and then to JavaScript.
The LiveScript to JavaScript name change came because Netscape and Sun did a license agreement.
The language was then submitted for standarization to the ECMA International Organization. By that time...
WebClient vs. HttpWebRequest/HttpWebResponse
...aders, protocol, etc... In the response, you can also retrieve the cookies and headers
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Operator overloading in Java
... aspect of Java which comes close to "custom" operator overloading is the handling of + for strings, which either results in compile-time concatenation of constants or execution-time concatenation using StringBuilder/StringBuffer. You can't define your own operators which act in the same way though....