[Rails] Re: Why Nokogiri::HTML::Document#meta_encoding returns nil ?

Tamara Temple wrote in post #1111724:
> Love U Ruby <lists@ruby-forum.com> wrote:
>> <meta charset="UTF-8">
>> </head>
>> eof

You realized my exact pain area. I always confused about the use of the
below two methods:

**Nokogiri::HTML::Document.new
**Nokogiri::HTML::Document.parse

==================================


require "nokogiri"
require 'pp'

doc = Nokogiri::HTML::Document.parse "<title> Save the page! </title>"
doc.class # => Nokogiri::HTML::Document
doc
# => #(Document:0x4592d16 {
# name = "document",
# children = [
# #(DTD:0x4592244 { name = "html" }),
# #(Element:0x458dd7a {
# name = "html",
# children = [
# #(Element:0x45871d2 {
# name = "head",
# children = [
# #(Element:0x458161a {
# name = "title",
# children = [ #(Text " Save the page! ")]
# })]
# })]
# })]
# })

doc = Nokogiri::HTML::Document.new("<title> Save the page! </title>")
doc.class # => Nokogiri::HTML::Document
doc
# => #(Document:0x4578128 {
# name = "document",
# children = [ #(DTD:0x45714fe { name = "html" })]
# })


Both the document creating `Nokogiri::HTML::Document` object. But when I
am printing those,seeing the output differently. Now my questions are -

(a) why does `Nokogiri::HTML::Document.parse` and
`Nokogiri::HTML::Document.new` creating the document object differently?

(b) What is the proper use-case about their uses mean when should I need
to think/what method to use?


Please help me to digest this basic food. :) :)

Thanks

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