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Strings and Sentences. Write a function (join L) that consumes a non-empty Clistof Str), and returns the Str that results fro
Using the doctor racket programing language please thank you

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Answer #1

Code:

#lang racket

;;A method of joining list of strings using the inbuilt function string-join with the separator as space.
(define (join L) (string-join L " " ) )

;;Testing the join function
(join (list "Hello" "how" "are" "you?") )

OUTPUT:

#lang racket :A method of joining list of strings using the inbuilt function string-join with the separator as space (define

Another version of code using first and last:

#lang racket

#|Another method of joining list of strings by using the first and rest.
first a list is created by converting the string returned from first function into list,
then getting the sublist using rest and appending both of them into a list.
Then this list is passed as argument to the function string-join with the separator space.
|#
(define (join L) (string-join (append ( list (first L)) (rest L)) " " ) )

;;Testing the join function
(join (list "Hello" "how" "are" "you?") )

OUTPUT:

#lang racket #!Another method of joining list of strings by using the first and rest. first a list is created by converting t

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