A hash table uses a hash function to compute an index, also called a hash code, into an array of buckets or slots, from which the desired value can be found.
In der Informatik bezeichnet man eine spezielle Indexstruktur als Hashtabelle (englisch hash table oder hash map) bzw. Streuwerttabelle.
People also ask
Why is it called a hash table?
In French, a hash table is called "table de hachage", the related verb "hacher" means to chop/to mince (food mostly). The verb to hash has the same meaning in English. So as other have pointed out it is called hash, because you chop your input that you put in pieces in different places (your table entries).
What is the purpose of a hash table?
A hash table is a data structure that is used to store keys/value pairs. It uses a hash function to compute an index into an array in which an element will be inserted or searched.
Why do they call it hash?
THE WORD "hash" is a variant of "hatch", which means "to inscribe with parallel lines", as in "hatchure" and "cross-hatch"; it derives from Old French hacher, meaning "to chop", and the dish called "hash" is so named because it contains chopped meat.
Who invented the hash table?
In 1953, Hans Peter Luhn suggested a new way to store and retrieve information called the hash table.
To do: Define and describe what a hash table is. Introduce key/value relationships; Introduce concepts such as table size (why are prime numbers important?)
Hash table - Simple English Wikipedia, the free encyclopedia
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The article Hash tables on Wikipedia projects: (en) Hash table; (cs) Hashovací tabulka; (da) Hashtabel; (de) Hashtabelle; (es) Tabla hash; (fa) جدول هش; (fi) ...
(programming) An associative array implemented as a vector, the indexes into which are the result of applying a hash function to the key. Translations ...
Sep 8, 2020 · This lesson introduces PowerShell arrays and hash tables.