9 thoughts
last posted Nov. 9, 2014, 6:19 p.m.
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I'm currently using a weird mix of Programming in Haskell and Learn you a Haskell for great good to get some programming exercises.

PiH is far too academic and isn't focussed on learning while LYAH is far to step-by-step to just jump between sections but introduces the syntax of the language in a far better way.


Haskell symbols

:: Type definition (to the right)

:  Sequence concatenation
!! Access by array index

I scored badly at the first week's assignment on EDX, but at least it validated that I didn't understand the language of questions even with multiple choice.

Despite the name of the course the first three sessions are really about learning the syntax of Haskell.


I really prefer the let ... in format to the ... where format


TIL that Haskell uses significant whitespace. I remain convinced that it is a pretty good strategy for block demarcation.


Okay so you define an function in the interactive session by using let. That had baffled me for a little while.


If you've done Python list comprehensions then you can take to Haskell's equivalent like a duck to water.

Interestingly just like Python they are also easier to use than combining lambda expressions with things like map and filter.


I think having the backtick notation for prefixing an argument seems nuts, commit to prefix notation FTW


I was starting to get frustrated about the number of parens that were needed on functions (and people complain about LISP) and then I discovered the wonderful point operator (literally .) that allows you to create a partial function chain.

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edX - FP101

2 thoughts
updated Nov. 16, 2014, 11:49 p.m.