How to compare two Strings in Haskell?

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buscaLivroNome :: Livro -> Nome -> String
buscaLivroNome [] _ = "Nao Encontrado"
buscaLivroNome ((codigo,nome1,preco, autor, ano):resto) nome2 | nome1 == nome2 = "Livro Encontrado" | otherwise = buscaLivroNome resto nome2

I need to compare the strings nome1 and nome2 are equal, but is returning this error:

Exception: Prelude.read: no parse

haskell

  • Compare strings in Haskell

  • 1

    Information is missing from your question, such as the complete type of Livro and of Nome, in addition, the function read is not being called anywhere in your code.

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