Traversing

Example

pq('div > p')->add('div > ul')
    ->filter(':has(a)')
    ->find('p:first')
    ->nextAll()
    ->andSelf()->...

eq($index) Reduce the set of matched elements to a single element.
hasClass($class) Checks the current selection against a class and returns true, if at least one element of the selection has the given class.
filter($expr) Removes all elements from the set of matched elements that do not match the specified expression(s).
filter($fn) Removes all elements from the set of matched elements that does not match the specified function.
is($expr) Checks the current selection against an expression and returns true, if at least one element of the selection fits the given expression.
map($callback) Translate a set of elements in the jQuery object into another set of values in an array (which may, or may not, be elements).
not($expr) Removes elements matching the specified expression from the set of matched elements.
slice($start, $end) Selects a subset of the matched elements.

add($expr) Adds more elements, matched by the given expression, to the set of matched elements.
children($expr) Get a set of elements containing all of the unique immediate children of each of the matched set of elements.
contents() Find all the child nodes inside the matched elements (including text nodes), or the content document, if the element is an iframe.
find($expr) Searches for all elements that match the specified expression. This method is a good way to find additional descendant elements with which to process.
next($expr) Get a set of elements containing the unique next siblings of each of the given set of elements.
nextAll($expr) Find all sibling elements after the current element.
parent($expr) Get a set of elements containing the unique parents of the matched set of elements.
parents($expr) Get a set of elements containing the unique ancestors of the matched set of elements (except for the root element). The matched elements can be filtered with an optional expression.
prev($expr) Get a set of elements containing the unique previous siblings of each of the matched set of elements.
prevAll($expr) Find all sibling elements before the current element.
siblings($expr) Get a set of elements containing all of the unique siblings of each of the matched set of elements. Can be filtered with an optional expressions.

andSelf() Add the previous selection to the current selection.
end() Revert the most recent 'destructive' operation, changing the set of matched elements to its previous state (right before the destructive operation).