Syntax in Functions

Syntax in Functions

1. Pattern matching

   • when creating a function, the body can separate into patterns
   • You can pattern match on any data type
   • unordered sentences in patterns might generate infinite loops
     • we should always include a general pattern
       • _ any data from the list
   • you have to define the patterns for whatever entrance

2. The lists themselves can also use patterns.

3. Guards, guards!

   • The guards are a way to check if any property of a value (or several of them) is true or false.
   • the patterns are usually used with the guards
     • if all the guards of a pattern are executed and they are false, we continue with the following pattern
   • they follow the name of a function and its parameters
   • has a little bleeding to the right and aligned
   • A guard is basically a Boolean expression
     • it is discouraged to write guards online are not very readable

4. where is located after the guards to calculate a varibale and then that variable compare it using the guards

   • it is best to apply sangria
   • The names that we define in this section are only visible for that function
   • the variables must be aligned correctly
   • If you want multiple patterns of a function to access a shared name, you must define it globally.

5. Where bindings are a syntactic construct that let you bind to variables at the end of a function and the whole function can see them, including all the guards.

   • The names that you define in the let part are accessible to the expression after the in part
   • If we want to link several variables online, obviously we can not align them in columns That's why we can separate them with semicolons.

6. Case expressions

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