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When to use extern in C++
I'm reading "Think in C++" and it just introduced the extern declaration. For example:
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What is the difference between i++ and ++i?
I've seen them both being used in numerous pieces of C# code, and I'd like to know when to use i++ or ++i ( i being a number variable like int , float , double , etc). Anyone who knows this?
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A monad is just a monoid in the category of endofunctors, what's the problem?
Who first said the following?
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Fast way of finding lines in one file that are not in another?
I have two large files (sets of filenames). Roughly 30.000 lines in each file. I am trying to find a fast way of finding lines in file1 that are not present in file2.
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Iterate all files in a directory using a 'for' loop
How can I iterate over each file in a directory using a for loop?
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Difference between applicationContext.xml and spring-servlet.xml in Spring Framework
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Spring lets you define multiple contexts in a parent-child hierarchy.
The applicationContext.xml defines the beans for the "root webapp context", i.e. the context associated with the webapp.
The spring-servlet.xml (or whatever...
For-each over an array in JavaScript
How can I loop through all the entries in an array using JavaScript?
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How to create a trie in Python
I'm interested in tries and DAWGs (direct acyclic word graph) and I've been reading a lot about them but I don't understand what should the output trie or DAWG file look like.
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
I used JSLint on a JavaScript file of mine. It threw the error:
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Executing multi-line statements in the one-line command-line?
I'm using Python with -c to execute a one-liner loop, i.e.:
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