How to resolve the algorithm Hash from two arrays step by step in the Haskell programming language
How to resolve the algorithm Hash from two arrays step by step in the Haskell programming language
Table of Contents
Problem Statement
Using two Arrays of equal length, create a Hash object where the elements from one array (the keys) are linked to the elements of the other (the values)
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Hash from two arrays step by step in the Haskell programming language
The code snippet you provided creates a map from a list of keys to a list of values. The map is created using the fromList
function, which takes a list of pairs and returns a map. In this case, the list of pairs is created by zipping the list of keys with the list of values.
The resulting map is assigned to the variable mymap
. We can use the mymap
variable to access the values in the map. For example, we can use the lookup
function to get the value associated with a particular key.
Here is an example of how to use the mymap
variable:
> lookup 'a' mymap
Just 1
This code looks up the value associated with the key 'a' in the mymap
map. The result is a Just
value, which contains the value 1.
We can also use the member
function to check if a key is present in the map.
> member 'a' mymap
True
This code checks if the key 'a' is present in the mymap
map. The result is True
, which indicates that the key is present in the map.
Source code in the haskell programming language
import Data.Map
makeMap ks vs = fromList $ zip ks vs
mymap = makeMap ['a','b','c'] [1,2,3]
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