In Haskell, you can split a string using the splitOn function from the Data.List.Split module. This function takes two arguments: the delimiter string and the input string.
Here is an example of how to use splitOn:
import Data.List.Split
inputString = "apples,bananas,grapes"
delimiter = ","
splitString = splitOn delimiter inputString
-- Output: ["apples","bananas","grapes"]
In this example, we import the Data.List.Split module that contains the splitOn function. We define the input string variable inputString and the delimiter variable delimiter. We then call the splitOn function with the delimiter and input string as arguments, and assign the result to splitString.
The result of splitOn is a list of strings, where each string is a component of the original string that was separated by the delimiter. In this example, the output is ["apples","bananas","grapes"].
You can also use other functions in the Data.List.Split module to split a string. For example, you can use split to split a string on a regular expression or chunksOf to split a string into chunks of a given length.