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How to get the index of an element in an IEnumerable?
...concept of IIndexableEnumerable. that would just be the equivalent of an "random accessible" concept, in C++ STL terminology.
– v.oddou
Mar 28 '13 at 4:02
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What is a good Hash Function?
What is a good Hash function? I saw a lot of hash function and applications in my data structures courses in college, but I mostly got that it's pretty hard to make a good hash function. As a rule of thumb to avoid collisions my professor said that:
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What is the use of join() in Python threading?
I was studying the python threading and came across join() .
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How can you encode a string to Base64 in JavaScript?
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You can use btoa() and atob() to convert to and from base64 encoding.
There appears to be some confusion in the comments regarding what these functions accept/return, so…
btoa() accepts a “string” where each character represents an 8-b...
How to remove a single, specific object from a ConcurrentBag?
...how do you remove a certain, specific object from it when only TryTake() and TryPeek() are available?
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Converting a generic list to a CSV string
I have a list of integer values (List) and would like to generate a string of comma delimited values. That is all items in the list output to a single comma delimted list.
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How to negate a method reference predicate
...w that shows how by explicitly casting the method reference to a Predicate and then converting it using the negate function. That is one way among a few other not too troublesome ways to do it.
The opposite of this:
Stream<String> s = ...;
int emptyStrings = s.filter(String::isEmpty).count()...
Foreign Key to non-primary key
I have a table which holds data, and one of those rows needs to exist in another table. So, I want a foreign key to maintain referential integrity.
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Why is the use of alloca() not considered good practice?
...memory. Freeing of memory allocated through malloc() is a major headache and if somehow missed leads to all sorts of memory problems.
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Get all inherited classes of an abstract class [duplicate]
...ost" of this operation - you're only going to be doing it once (hopefully) and even then it's not as slow as you'd think.
You need to use Assembly.GetAssembly(typeof(T)) because your base class might be in a different assembly.
You need to use the criteria type.IsClass and !type.IsAbstract because ...