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Why does Python code run faster in a function?
... is a CPython implementation detail.
Remember that CPython is compiled to bytecode, which the interpreter runs. When a function is compiled, the local variables are stored in a fixed-size array (not a dict) and variable names are assigned to indexes. This is possible because you can't dynamically a...
Difference between single and double quotes in Bash
...es. A single quote may not occur between single quotes, even when preceded by a backslash.
3.1.2.3 Double Quotes
Enclosing characters in double quotes (") preserves the literal value of all characters within the quotes, with the exception of $, `, \, and, when history expansion is enabled...
What is the (function() { } )() construct in JavaScript?
...})();
// foo is unreachable here (it’s undefined)
Correction suggested by Guffa:
The function is executed right after it's created, not after it is parsed. The entire script block is parsed before any code in it is executed. Also, parsing code doesn't automatically mean that it's executed, i...
Why doesn't Java allow to throw a checked exception from static initialization block?
...rround them with try-catch.
Because you cannot handle any error indicated by a checked exception, it was decided to disallow throwing of checked exceptions static blocks.
The static block must not throw checked exceptions but still allows unchecked/runtime-exceptions to be thrown. But according to...
How do you usually Tag log entries? (android)
...
As mentioned by Ralph Mueller, this technique does not work if you use Proguard (as most Android projects do) to obfuscate the class names.
– John Patterson
Apr 28 '14 at 22:55
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Origin is not allowed by Access-Control-Allow-Origin
... chrome plugin automatically allows you to access any site from any source by adding the proper response header
Chrome Extension Allow-Control-Allow-Origin: *
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Java: Why is the Date constructor deprecated, and what do I use instead?
...e from the C# world, so not too experienced with Java yet. I was just told by Eclipse that Date was deprecated:
14 Answer...
Disadvantages of Test Driven Development? [closed]
What do I lose by adopting test driven design?
31 Answers
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What really is a deque in STL?
... insertion and deletion from both ends in constant time, but I am troubled by the promise made by the operator [] to be done in constant time. In a linked list, arbitrary access should be O(n), right?
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Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
...ry Overview, it is considered good practice to include the support library by default because of the large diversity of devices and the fragmentation that exists between the different versions of Android (and thus, of the provided APIs).
This is the reason why Android code templates tools included ...