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Brian_Alexander
Asked: 2020-05-08 06:06:17 +0800 CST 2020-05-08 06:06:17 +0800 CST

How do I create a method that writes or creates an html file in ruby? [closed]

  • 772

I have to create a method that receives two strings , this method will create an index.html file and put each of the received strings as a paragraph .

ruby

1 Answers

  1. Best Answer

    To create a file you can use File.openwith the option "w", and to write to the file use the write; for instance:

    def create_index(*strings)
  File.open("index.html", "w") do |f|
    f.write("<html>\n")
    f.write("<head>\n<title>Mi título</title>\n</head>\n")
    f.write("<body>\n")

    strings.each { |string| f.write("<p>#{string}</p>\n") }

    f.write("</body>\n</html>\n")
  end
end

    By specifying *stringsas a parameter, it allows you to call the method with one or more strings , you don't limit the method to just one.

    For example, you can call the above function like this:

    s1 = "Párrafo uno"
s2 = "Párrafo dos"

create_index(s1, s2)

    Which would create the index.html file with the following content:

    <html>
<head>
<title>Mi título</title>
</head>
<body>
<p>Párrafo uno</p>
<p>Párrafo dos</p>
</body>
</html>

    You could also use heredoc and call File.write, making your code slightly more efficient and readable:

    def create_index(*strings)
  contents = <<~HTML
    <html>
      <head>
        <title>Mi título</title>
      </head>
      <body>
        #{strings.map { |s| "<p>" + s + "</p>" }.join }
      </body>
    </html>
  HTML

  File.write("index.html", contents)
end

    Result:

    <html>
  <head>
    <title>Mi título</title>
  </head>
  <body>
    <p>Párrafo uno</p><p>Párrafo dos</p>
  </body>
</html>
    • 1