How to eval strings in racket

Question

I\'m trying to understand how to get the eval function to read a string and evaluate the content that\'s inside the string.

Currently I know that

> (         


        

Answer 1

You want to use read together with open-input-string. Like so:

-> (eval (read (open-input-string "(+ 1 2)")))
3

You can also use with-input-from-string:

-> (with-input-from-string "(+ 1 2)"
     (lambda () (eval (read))))
3