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# ->matchAll()
# basic selectors
 -  takes a CSS selector as its first argument
 -  returns an array of matching texts
 -  supports searching html elements by id
 -  supports searching html elements by id for a tag name
 -  can take a * to match every elements
 -  can take a * to match every elements
 -  can take a * to match every elements
 -  supports searching html elements by class name
 -  supports searching html elements by class name for a tag name
 -  supports searching html elements by class name for a tag name
 -  supports searching html elements by class name
 -  supports searching html elements by class name for multi-class elements
 -  supports searching html elements by class name for multi-class elements
 -  supports searching html elements by class name for multi-class elements
 -  supports searching html elements by several selectors
 -  returns an empty array if the id does not exist
 - Hyphenated class names are matched correctly
# attribute selectors
 -  supports checking attribute existence
 -  supports checking attribute word matching
 -  supports checking attribute word matching
 -  supports checking attribute word matching
 -  supports checking attribute starting with
 -  supports checking attribute ending with
 -  supports checking attribute with *
 -  supports checking attribute word matching
 -  supports checking attribute starting with value followed by optional hyphen
 -  supports chaining attribute selectors
 -  supports chaining attribute selectors
 -  support . # and spaces in attribute selectors
# combinators
 -  takes a CSS selectors separated by one or more spaces
 -  support > combinator
 -  support > combinator with optional surrounding spaces
 -  support + combinator
 -  support + combinator with optional surrounding spaces
 -  takes a multiple CSS selectors separated by a ,
 -  takes a multiple CSS selectors separated by a ,
 -  takes a multiple CSS selectors separated by a ,
 -  returns nodes only once for multiple selectors
 -  returns nodes only once for multiple selectors
 -  mega example!
 -  :
 -  :
 -  :last
 -  :first
 -  :first
 -  :first
 -  :lt
 -  :gt
 -  :odd
 -  :even
 -  :first-child
 -  :nth-child
 -  :nth-child
 -  :nth-child
 -  :last-child
# combinations of pseudo-selectors
 -  ::
 -  ::last
 -  :last:
 -  : supports different quote styles
# ->matchAll()
 -  returns a new sfDomCssSelector restricted to the result nodes
# ->matchSingle()
 -  returns a new sfDomCssSelector restricted to the first result node
# ->getValues()
 -  returns all node values
# ->getValue()
 -  returns the first node value
 -  suppports the + combinator
 -  suppports the + combinator
 -  suppports the + combinator
 -  suppports the + combinator
 -  suppports the + combinator
# Iterator interface
 - The object is an iterator
 - The object is an iterator
# Countable interface
 - sfDomCssSelector implements Countable
 - sfDomCssSelector implements Countable
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