I'm building a tree of html elements, class names and their counts.
How would I structure this code with the proper syntax?
$html = {
:p => [
{ 'quote' => 10 },
{ 'important' => 4 }
],
:h2 => [
{ 'title' => 33 },
{ 'subtitle' => 15 }
]
}
I'm confused by the nested hash syntax. Thanks for the help setting me straight.
A simple way to structure a HTML tree could be:
html = [
{ _tag: :p, quote: 10, important: 4 },
{ _tag: :h2, title: 33, subtitle: 15 },
]
Where html[0][:_tag] is the tag name, and other attributes are accessible through html[0][attr]. The root element is an array since multiple elements of the same type (multiple paragraphs) could exist in the same namespace and a hash would only store the last added one.
A more advanced example which would allow nested contents:
tree = { _tag: :html, _contents: [
{ _tag: :head, _contents: [
{ _tag: :title, _contents: "The page title" },
]},
{ _tag: :body, id: 'body-id', _contents: [
{ _tag: :a, href: 'http://google.com', id: 'google-link', _contents: "A link" },
]},
]}
After defining the HTML element you don't assign another hash, but a list and from your question title I guess you want to nest another hash directly. Thus you do not start with a square bracket, but with another curly brace:
$html = {
:p => { 'quote' => 10, 'important' => 4 },
:h2 => { 'title' => 33, 'subtitle' => 15 }
}
#Example
puts $html[:p]['quote']
Which will print:
10
Take a look at the constructor documentation of Hash, there are different ways to initialize hashes, maybe you find a more intuitive one.
