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| -rw-r--r-- | README.md | 2 | ||||
| -rw-r--r-- | ch02/2_a_1.txt | 15 |
2 files changed, 16 insertions, 1 deletions
@@ -47,7 +47,7 @@ more visible in the list the first exercise of a group is in bold italics. | 1_a_2 | yes | | | | 1_a_3 | yes | | | | 1_a_4 | yes | | | -| **_2_a_1_** | | 25 | 2. Types and functions | +| **_2_a_1_** | yes | 25 | 2. Types and functions | | **_2_b_1_** | | 39 | | | 2_b_2 | | | | | 2_b_3 | | | | diff --git a/ch02/2_a_1.txt b/ch02/2_a_1.txt new file mode 100644 index 0000000..26ad22b --- /dev/null +++ b/ch02/2_a_1.txt @@ -0,0 +1,15 @@ +-- What are the types of the following expressions? 4 comments +-- - False +-- - (["foo", "bar"], 'a') +-- - [(True, []), (False, [['a']])] + +-- Let's use ghci to check our answers + +ghci> :t False +False :: Bool + +ghci> :t (["foo", "bar"], 'a') +(["foo", "bar"], 'a') :: ([String], Char) + +ghci> :t [(True, []), (False, [['a']])] +[(True, []), (False, [['a']])] :: [(Bool, [[Char]])] |