From 4580850fc3ce2bf1881411e43d8284a5a32b7926 Mon Sep 17 00:00:00 2001 From: Matt Davidson Date: Fri, 4 Nov 2022 13:42:32 +0000 Subject: [PATCH] Finished first koan and some answers for second --- src/koans/01_equalities.clj | 11 ++++++----- src/koans/02_strings.clj | 36 ++++++++++++++++++------------------ 2 files changed, 24 insertions(+), 23 deletions(-) diff --git a/src/koans/01_equalities.clj b/src/koans/01_equalities.clj index bc96860..6e0e448 100644 --- a/src/koans/01_equalities.clj +++ b/src/koans/01_equalities.clj @@ -24,16 +24,17 @@ (= true (not (= 1 nil))) "Strings, and keywords, and symbols: oh my!" - (= __ (= "hello" :hello 'hello)) + (= false (= "hello" :hello 'hello)) "Make a keyword with your keyboard" - (= :hello (keyword __)) + (= :hello (keyword 'hello)) + "Symbolism is all around us" - (= 'hello (symbol __)) + (= 'hello (symbol "hello")) "What could be equivalent to nothing?" - (= __ nil) + (= nil nil) "When things cannot be equal, they must be different" - (not= :fill-in-the-blank __)) + (not= :fill-in-the-blank "fill-in-the-blank")) diff --git a/src/koans/02_strings.clj b/src/koans/02_strings.clj index f2d9623..d6c8eff 100644 --- a/src/koans/02_strings.clj +++ b/src/koans/02_strings.clj @@ -4,52 +4,52 @@ (meditations "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?")) "You can even get certain characters" - (= \C (get "Characters" __)) + (= \C (get "Characters" 0)) "Or even count the characters" - (= __ (count "Hello World")) + (= 11 (count "Hello World")) "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)) "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" (string/join ", " '(1 2 3))) "Maybe you want to separate out all your lines" - (= [__ __ __] (string/split-lines "1\n2\n3")) + (= ["1" "2" "3"] (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 occurrence of a substring" - (= 0 (string/index-of "hello world" __)) + (= 0 (string/index-of "hello world" "h")) "Or maybe the last index of the same" - (= __ (string/last-index-of "hello world, hello" "hello")) - + (= 13 (string/last-index-of "hello world, hello" "hello")) + "But when something doesn't exist, nothing is found" - (= __ (string/index-of "hello world" "bob")) + (= nil (string/index-of "hello world" "bob")) "Sometimes you don't want whitespace cluttering the front and back" - (= __ (string/trim " \nhello world \t \n")) + (= "hello world" (string/trim " \nhello world \t \n")) - "You can check if something is a char" - (= __ (char? \c)) + "You can check if something is a char" + (= true (char? \c)) "But it may not be" (= __ (char? "a"))