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I am learning Scala and I wonder if an overview of method/function syntax exists? When to use parantheses, different ways of writing etc. Also the conventions would be nice.
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However, functions are an object which is initialized in a variable, but methods start with the 'def' keyword followed by the method name, parameter list, method body with the return value. The syntax for method declaration and definition in Scala is below: 'def': keyword which is used to declare methods.
A Scala function declaration has the following form − def functionName ([list of parameters]) : [return type] Methods are implicitly declared abstract if you don’t use the equals sign and the method body.
The functions which do not return anything in Scala, they are called procedures. object Hello { def printMe ( ) : Unit = { println ("Hello, Scala!") } } Scala provides a number of syntactic variations for invoking methods. Following is the standard way to call a method −
Scala is a functional programming language where it contains both functions as first-class values and methods and has both similarities and dissimilarities. Both the functions and methods are a block of the reusable code also used to store the repeated code in one place, which makes a function call to performs a particular specific task.
I think all the information you're requesting is in the Scala docs.
Specifically, the style guide and the cheatsheet.
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Effective Scala from Twitter is also an excellent resource. I've adopted it for all my Scala projects.
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