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Using foldl, define a function dec2int :: [Int] $\rightarrow$ Int that converts a decimal number into an integer. For example: dec2int $[2,3,4,5]$ 2345

   Using foldl, define a function dec2int :: [Int] $\rightarrow$ Int that converts a decimal number into an integer. For example:
dec2int $[2,3,4,5]$
2345

Programming in Haskell

Programming in Haskell

Graham Hutton 2nd Edition

Chapter 7, Problem 4

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Step 1

We can use the `reverse` function for this. Next, we need to define a helper function that takes an accumulator and a digit, and returns the updated accumulator. The accumulator will keep track of the current value of the decimal number. The helper function can Show more…

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Using foldl, define a function dec2int :: [Int] $\rightarrow$ Int that converts a decimal number into an integer. For example: dec2int $[2,3,4,5]$ 2345

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