For example here is some code in the routes.rb file
match 'products/:id' => 'products#show', via: :get
I would think match is a method without parens, so that is something I am used to. Then the match method takes two arguments. But is
'products/:id' => 'products#show'
supposed to be an implied hash? I can't create a hash using no braces like this seems to be doing here
my_hash = 'p' => 'x'
Then the last piece doesn't work in my irb substituting the values but keeping the structure.
I know how to read the docs and just copy paste and sub out values for what I need and make things work, but I want to understand the syntax so that I can just write the code without having to feel like it is all arbitrary and needing the docs to show me exactly what to type.
Regarding the hash, it is, indeed, a hash. When creating a new hash, Ruby expects it to be defined within curly braces ({}). However, it allows it to be declared without braces when passing it as an argument to a method (when it is the last argument). Same thing happens with via: :get.
You can read more about it here.