Step by Step solution about How to resolve the algorithm Strip a set of characters from a string step by step in the Haskell programming language

The code snippet you provided is a function called stripChars that takes two strings as input and returns a new string that is the first string with all characters from the second string removed.

The function uses the filter function to remove all characters from the first string that are also in the second string. The filter function takes a predicate function and a list as input and returns a new list containing only the elements of the original list that satisfy the predicate.

In this case, the predicate function is flip notElem, which takes two strings as input and returns True if the first string is not an element of the second string, and False otherwise. The flip function is used to swap the order of the arguments to notElem.

The code snippet you provided is equivalent to the following code:

stripChars :: String -> String -> String
stripChars s1 s2 = filter (\c -> c `notElem` s2) s1

stripChars :: String -> String -> String
stripChars = filter . flip notElem