Add solutions to section 02 - strings

02_strings.clj

@@ -1,66 +1,68 @@
 
   ; "A string is nothing more than text surrounded by double quotes"
-  (= __ "hello")
+  (= "hello" "hello")
 
   ; "But double quotes are just magic on top of something deeper"
-  (= __ (str 'world))
+  (= "world" (str 'world))
 
   ; "You can do more than create strings, you can put them together"
-  (= "Cool right?" (str __ __))
+  (= "Cool right?" (str "Cool" " right?")) ;; J - Whitespace!!
 
   ; "You can even get certain characters"
-  (= \C (get "Characters" __))
+  (= \C (get "Characters" 0)) ;; J - get returns character or item number at a given index
 
   ; "Or even count the characters"
-  (= __ (count "Hello World"))
+  (= 11 (count "Hello World")) ;; J - count returns the length of a string or list
 
   ; "But strings and characters are not the same"
-  (= __ (= \c "c"))
+  (= false (= \c "c"))
 
   ; "What if you only wanted to get part of a string?"
-  (= "World" (subs "Hello World" __ __))
+  (= "World" (subs "Hello World" 6 11)) ;; J - subs returns a substring of a given string and can take
+                                        ;; two arguments. The the first one is the begining index of the
+                                        ;; substring and the second one is the last
 
   ; "How about joining together elements in a list?"
-  (= __ (string/join '(1 2 3)))
+  (= "123" (string/join '(1 2 3)))
 
   ; "What if you wanted to separate them out?"
-  (= "1, 2, 3" (string/join __ '(1 2 3)))
+  (= "1, 2, 3" (clojure.string/join ", " '(1 2 3))) ;; J - join does non seperate with whitespace by default
 
   ; "Maybe you want to separate out all your lines"
-  (= [__ __ __] (string/split-lines "1\n2\n3"))
+  (= ["1" "2" "3"] (clojure.string/split-lines "1\n2\n3"))
 
   ; "You may want to make sure your words are backwards"
-  (= __ (string/reverse "hello"))
+  (= "olleh" (string/reverse "hello"))
 
   ; "Maybe you want to find the index of the first occurence of a substring"
-  (= 0 (string/index-of "hello world" __))
+  (= 0 (clojure.string/index-of "hello world" __))
 
   ; "Or maybe the last index of the same"
-  (= __ (string/last-index-of "hello world, hello" "hello"))
+  (= __ (clojure.string/last-index-of "hello world, hello" "hello"))
 
   ; "But when something doesn't exist, nothing is found"
-  (= __ (string/index-of "hello world" "bob"))
+  (=  (clojure.string/index-of "hello world" "bob")) ;; J - Errored out
 
   ; "Sometimes you don't want whitespace cluttering the front and back"
-  (= __ (string/trim "  \nhello world \t \n"))
+  (= "hello world" (clojure.string/trim "  \nhello world \t \n"))
 
   ; "You can check if something is a char"
-  (= __ (char? \c))
+  (= true (char? \c))
 
   ; "But it may not be"
-  (= __ (char? "a"))
+  (= false (char? "a"))
 
   ; "But chars aren't strings"
-  (= __ (string? \b))
+  (= false (string? \b))
 
   ; "Strings are strings"
   (= true (string? __))
 
   ; "Some strings may be blank"
-  (= __ (string/blank? ""))
+  (= true (clojure.string/blank? ""))
 
   ; "Even if at first glance they aren't"
-  (= __ (string/blank? " \n \t  "))
+  (= true (clojure.string/blank? " \n \t  "))
 
   ; "However, most strings aren't blank"
-  (= __ (string/blank? "hello?\nare you out there?"))
+  (= false (clojure.string/blank? "hello?\nare you out there?"))