如何搜索Ruby / Rails的语法

Question

As a beginner, I always have problems about some method when coding. For example, when I'm writing a import csv feature, I don't know whether a new could take a block as a variable, and what the CSV.foreach iterates through.

def self.import(file, date)
  CSV.foreach(file.path, header: true) do |row|
    point = Point.find_or_create_by_name(row["name"])
    point.observations.new do |observation|
      observation.value =  row["value"]
      observation.record_date = date
    end
  end
end

For most developers, these are easy questions, but for beginners like me, these are real-life problems that we really struggle about.

How do we search for Ruby's syntax?

Answer 1

您在寻找ruby-doc.org吗？

• CSV.foreach(path, options = Hash.new, &block)