René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"continue to deal the result as a array after filter","articleBody":"## Motivation\r\nI have a json like this:\r\n```\r\n{\r\n  \"contactMedium\": [\r\n    {\r\n      \"@type\": \"EmailContactMedium\",\r\n      \"preferred\": true,\r\n      \"contactType\": \"other\",\r\n      \"validFor\": {\r\n        \"startDateTime\": \"2018-10-22T08:31:52.028Z\"\r\n      },\r\n      \"emailAddress\": \"tom@email.com\"\r\n    },\r\n    {\r\n      \"@type\": \"GeographicAddressContactMedium\",\r\n      \"preferred\": true,\r\n      \"contactType\": \"other\",\r\n      \"validFor\": {\r\n        \"startDateTime\": \"2018-10-22T08:31:52.028Z\"\r\n      },\r\n    }\r\n  ]\r\n}\r\n```\r\nI want to get the number of item with preferred==true\r\nconst result = JSONPath({ path: '$.contactMedium[?(@.preferred==true)].length', json: data })\r\n## Current behavior\r\ngot []\r\n## Desired behavior\r\ngot 2\r\n## Alternatives considered\r\ncurrently, i can got the result expected by this way.\r\nconst result = JSONPath({ path: '$.contactMedium[?(@.preferred==true)]', json: data })\r\nconsole.log(result)\r\n\r\nconst result2 = JSONPath({ path: '$.length', json: result })\r\nconsole.log(result2)","author":{"url":"https://github.com/NingGelin","@type":"Person","name":"NingGelin"},"datePublished":"2024-01-15T06:05:26.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/202/JSONPath/issues/202"}