Top "Hashtable" questions

A hash table in programming is a collection that uses a hash function to map identifying values (keys) to their associated values.

Best performance on a String Dictionary in C#

I am designing a C# class that contains a string hierarchy, where each string has 0 or 1 parents. My inclination is …

c# performance dictionary hashtable idictionary
What's the difference between distributed hashtable technology and the bitcoin blockchain?

This question could go into a bitcoin forum but I am trying to understand from a programming point of view. …

hashtable distributed bitcoin dht blockchain
Add the value of a variable to a HashTable as the key

PowerShell V5 Windows 10 For example, the variable $EmployeeID contains the string testValue, and I want to simply use the value …

powershell hashtable powershell-5.0
Using as a concrete type conforming to protocol AnyObject is not supported

I'm using Swift 2 and using WeakContainer as a way to store a set of weak objects, much like NSHashTable.weakObjectsHashTable() …

swift reference hashtable protocols weak
Lua: How to look up in a table where the keys are tables (or objects)

I want to store a lua table where the keys are other lua tables. I know that this is possible …

lua hashtable lua-table
Berkeleydb - B-Tree versus Hash Table

I am trying to understand what should drive the choice of the access method while using a BerkeleyDB : B-Tree versus …

hashtable berkeley-db b-tree
How are hash tables implemented internally in popular languages?

Can someone please shed some light on how popular languages like Python, Ruby implements hash tables internally for symbol lookup? …

c hashtable
Good way to hash a float vector?

I am well aware of all the problems involved in comparing floats. This is exactly the reason for this question. …

floating-point hashtable hash
Unordered_Map Lookup Time

The built in maps and sets in C++ libraries (including unordered_map and multimap) requires that the find function (used …

performance hashmap hashtable unordered-map multimap
Powershell parsing a properties file that contains colons

If I have a .properties file that contains directories (which contain colons): some_dir=f:\some\dir\etc another_dir=…

powershell hashtable properties-file