Haskell - Syntax in Functions

Haskell - Syntax in Functions

1. Pattern matching

   • we need to specify the patterns to which some data should conform
     • We can't use ++ in pattern matches
   • can define separate function bodies for different patterns

2. Recursion

3. We should use catch-all pattern

   • Unexpected inputs

4. Always need to match the pattern with the list comprehensions

5. Is possible modify the default functions

6. Guards

   • guards are a way of testing whether some property of a value (or several of them) are true or false
   • Guards are indicated by pipes that follow a function's name and its parameters
   • Works like an if but they are more readable

7. Let

   • bindings let you bind to variables anywhere
   • Are expressions of themselves

8. Case expressions

   • Is possible evaluate expressions based on the possible cases of the value of a variable
   • Are useful for pattern matching against something in the middle of an expression