@spec binary_to_string(binary()) :: String.t()

Transform binary to readable strings

iex> ExCrawlzy.Utils.binary_to_string(<<115, 111, 109, 101, 32, 115, 116, 114, 105, 110, 103>>)
"some string"

@spec exist(String.t() | Floki.html_tree() | Floki.html_node()) :: String.t()

Returns if some element exist

Examples:

  iex> ExCrawlzy.Utils.exist([{"h1", [{"class", "some_class"}], ["My text inside a h1"]}])
  true

  iex> ExCrawlzy.Utils.exist([])
  false

@spec props(String.t(), String.t() | Floki.html_tree() | Floki.html_node()) ::
  String.t()

Extract specific data from html element props

For example on a simple link <a href="http://site.example">My Link</a> you can extract just the data of the href prop

Examples:

iex> ExCrawlzy.Utils.props("href", [{"a", [{"href", "http://site.example"}], []}])
"http://site.example"
iex> ExCrawlzy.Utils.props("target", [{"span", [{"target", "some_value"}], []}])
"some_value"

@spec text(String.t() | Floki.html_tree() | Floki.html_node()) :: String.t()

Extract specific data based on html inner element as text, works great for html simple elements like span, p, h1 and even more

For example on a simple link <h1>My text inside a h1</h1> you can extract the text inside the element

Examples:

  iex> ExCrawlzy.Utils.text([{"h1", [{"class", "some_class"}], ["My text inside a h1"]}])
  "My text inside a h1"