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| author | Jan Sucan <jan@jansucan.com> | 2023-03-08 18:21:07 +0100 |
|---|---|---|
| committer | Jan Sucan <jan@jansucan.com> | 2023-03-08 18:21:07 +0100 |
| commit | c416bdb936f170377eb71868e7b3f59a667819db (patch) | |
| tree | 263b746ce2e3c98548343a4c7c3bc743de471350 /ch02 | |
| parent | 2eeccee06144314ed4a0ed579fb893aa2f322982 (diff) | |
2_a_1: Add solution
Diffstat (limited to 'ch02')
| -rw-r--r-- | ch02/2_a_1.txt | 15 |
1 files changed, 15 insertions, 0 deletions
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]])] |
