Method: HTML::Selector#select_first

Defined in:
lib/action_controller/vendor/html-scanner/html/selector.rb

#select_first(root) ⇒ Object

Similar to #select but returns the first matching element. Returns nil if no element matches the selector.



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# File 'lib/action_controller/vendor/html-scanner/html/selector.rb', line 471

def select_first(root)
  stack = [root]
  while node = stack.pop
    if node.tag? && subset = match(node, true)
      return subset.first if !subset.empty?
    elsif children = node.children
      stack.concat children.reverse
    end
  end
  nil
end