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What is the difference between a reference type and value type in c#?
Some guy asked me this question couple of months ago and I couldn't explain it in detail. What is the difference between a reference type and a value type in C#?
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Why don't structs support inheritance?
I know that structs in .NET do not support inheritance, but its not exactly clear why they are limited in this way.
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What is the best Distributed Brute Force countermeasure?
First, a little background: It is no secret that I am implementing an auth+auth system for CodeIgniter, and so far I'm winning (so to speak). But I've run into a pretty non-trivial challenge (one that most auth libraries miss entirely, but I insist on handling it properly): how to deal intelligently...
Why does string::compare return an int?
Why does string::compare return an int instead of a smaller type like short or char ? My understanding is that this method only returns -1, 0 or 1.
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How to write :hover condition for a:before and a:after?
How to write :hover and :visited condition for a:before ?
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Replace all elements of Python NumPy Array that are greater than some value
I have a 2D NumPy array and would like to replace all values in it greater than or equal to a threshold T with 255.0. To my knowledge, the most fundamental way would be:
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When to use a View instead of a Table?
When should a View actually be used over an actual Table? What gains should I expect this to produce?
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Convert a list of characters into a string
If I have a list of chars:
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What are Aggregates and PODs and how/why are they special?
This FAQ is about Aggregates and PODs and covers the following material:
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Extracting specific columns from a data frame
I have an R data frame with 6 columns, and I want to create a new dataframe that only has three of the columns.
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