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How does this giant regex work?
...j1qBwFUuh7AcTmCzcUIO69twFQkGj7p68Z2fIlzzVCWdAlUg7fM/2qG7z0EHqOYg34xVmG47vWwBY0UZNtuOADtF1qvn8iK37Y1mKj2lDz3eZE8OM2gNaIwZzp8PeetP5DTQFlDeAZTB2ob8GHDS6jWJ3ItFhRrZ+7fCaA84IKx7M3CnA43KYbXf2bzYCXmbrHkMC3KmgBhmAAytkQ+QJqCtMJR4vXqCjhA22jvMwG7L1mQsT+nr9Sb1ehwpGJoIkcy5LEUxtRVxEzGglYpr5xIy+hZh8XJwbat60T+NlCUm...
Reading a UTF8 CSV file with Python
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The .encode method gets applied to a Unicode string to make a byte-string; but you're calling it on a byte-string instead... the wrong way 'round! Look at the codecs module in the standard library and codecs.open in particular for better general solutions for reading UTF-8 encoded text...
Reading specific lines only
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Nice solution, how does this compare to the one proposed by @AdamMatan? The Adam solution could be faster as it exploits additional information (line numbers monotonically increasing) which could lead to an early stop. I have a 10GB file which I cannot load into memory.
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How to use a variable for a key in a JavaScript object literal?
... 100, top: 10}
This is just using the required [] notation as recommended by the other answers, but with fewer lines of code!
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How to get the last value of an ArrayList
... an O(n) iteration for an ArrayList, because as you can guess, it's backed by an array. So a simple get(<index>) just results in a constant-time retrieve from an array. (JDK source confirms this) For other list implementations, this isn't guaranteed, so for example, LinkedList has a getLast() ...
Disable cache for some images
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Browser caching strategies can be controlled by HTTP headers. Remember that they are just a hint, really. Since browsers are terribly inconsistent in this (and any other) field, you'll need several headers to get the desired effect on a range of browsers.
header ("Pr...
How to detect when WIFI Connection has been established in Android?
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Answer given by user @JPM and @usman are really very useful. It works fine but in my case it come in onReceive multiple time in my case 4 times so my code execute multiple time.
I do some modification and make as per my requirement and n...
How to connect to LocalDB in Visual Studio Server Explorer?
...a new connection of type Microsoft SQL Server (SqlClient) (don't be fooled by the other file types you want the full fat connection type) and set the Server name: to be the instance pipe name you copied from PowerShell.
I also set the Connect to database to be the same database that was in the con...
Why is string concatenation faster than array join?
...ringBuilderConcat(parts, len + 1, "");
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So, internally they optimize it by creating an InternalArray (the parts variable), which is then filled. The StringBuilderConcat function is called with these parts. It's fast because the StringBuilderConcat function is some heavily optimized C++ code. It's...
How to find the statistical mode?
...ctor of 1e6 elements and this solution was faster than the accepted answer by almost factor 3!
– vonjd
Jun 6 '16 at 10:34
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