Hypothesis

<table><tbody><tr class="evn"><td> XPath </td><td> JSONPath </td><td> Description </td></tr> <tr class="odd"><td> / </td><td> $ </td><td class="lft">the root object/element </td></tr> <tr class="evn"><td> . </td><td> @ </td><td class="lft">the current object/element </td></tr> <tr class="odd"><td> / </td><td> . or [] </td><td class="lft">child operator </td></tr> <tr class="evn"><td> .. </td><td> n/a </td><td class="lft">parent operator </td></tr> <tr class="odd"><td> // </td><td> .. </td><td class="lft">recursive descent. JSONPath borrows this syntax from E4X. </td></tr> <tr class="evn"><td> * </td><td> * </td><td class="lft">wildcard. All objects/elements regardless their names. </td></tr> <tr class="odd"><td> @ </td><td> n/a </td><td class="lft">attribute access. JSON structures don't have attributes. </td></tr> <tr class="evn"><td> [] </td><td> [] </td><td class="lft">subscript operator. XPath uses it to iterate over element collections and for predicates. In Javascript and JSON it is the native array operator. </td></tr> <tr class="odd"><td> | </td><td> [,] </td><td class="lft">Union operator in XPath results in a combination of node sets. JSONPath allows alternate names or array indices as a set. </td></tr> <tr class="evn"><td> n/a </td><td> [start:end:step] </td><td class="lft">array slice operator borrowed from ES4. </td></tr> <tr class="odd"><td> [] </td><td> ?() </td><td class="lft">applies a filter (script) expression. </td></tr> <tr class="evn"><td> n/a </td><td> () </td><td class="lft">script expression, using the underlying script engine. </td></tr> <tr class="odd"><td> () </td><td> n/a </td><td class="lft">grouping in Xpath </td></tr></tbody></table>

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