Operator	Description
$	The root element to query. This starts all path expressions.
@	The current node being processed by a filter predicate.
*	Wildcard. Available anywhere a name or numeric are required.
..	Deep scan. Available anywhere a name is required.
.	Dot-notated child.
['{name}' (, '{name}')]	Bracket-notated child or children.
[{number} (, {number})]	Bracket-notated child or children.
[start:end]	Array index or indexes.
[?({expression})]	Filter expression. Expression must evaluate to a boolean value.