I'm a newbie to both Rails & Ruby, I've just started reading the "Agile
Development with Rails" book yesterday.
I've noticed that in most of the times, we 're calling functions without
parentheses like *validates :title, presence: true *or assert
product.invalid? Sometimes though (mostly in views as I've noticed) we're
using parentheses, like *<%= number_to_currency(product.price, unit: "€").*
My question: is this generally the preferred way to code in Rails? If yes,
why? Sorry if this sounds silly but I can't clearly see why we prefer one
way over the other.
Also, I think it's kinda hard to get used to the parentheses-less style,
cause everytime I see a line of code I must closely watch it's syntax to
determine if this is a function call or something else. Is it only me?
Generally, I'm following the rule that every piece of code that has a word
and then a space and then something else, for example *respond_to :blah,
blu: 'test' *is a function call, isn't that right?
Thanks in advance.
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