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(Ruby) JSON: Nested ObjectsHere we have a JSON object that contains nested JSON objects. This example demonstrates how to access the contents of the nested objects. { "name": "donut", "image": { "fname": "donut.jpg", "w": 200, "h": 200 }, "thumbnail": { "fname": "donutThumb.jpg", "w": 32, "h": 32 } } Note: This example requires Chilkat v11.0.0 or greater.
require 'chilkat' success = false json = Chilkat::CkJsonObject.new() # This is the above JSON with whitespace chars removed (SPACE, TAB, CR, and LF chars). # The presence of whitespace chars for pretty-printing makes no difference to the Load # method. jsonStr = "{\"name\": \"donut\",\"image\":{\"fname\": \"donut.jpg\",\"w\": 200,\"h\": 200},\"thumbnail\":{\"fname\": \"donutThumb.jpg\",\"w\": 32,\"h\": 32}}" success = json.Load(jsonStr) if (success == false) print json.lastErrorText() + "\n"; exit end # Get the "image" object. imageObj = Chilkat::CkJsonObject.new() json.ObjectOf2("image",imageObj) print "image: fname=" + imageObj.stringOf("fname") + ", width=" + imageObj.IntOf("w").to_s() + ", height=" + imageObj.IntOf("h").to_s() + "\n"; # Get the "thumbnail" object. thumbObj = Chilkat::CkJsonObject.new() json.ObjectOf2("thumbnail",thumbObj) print "thumbnail: fname=" + thumbObj.stringOf("fname") + ", width=" + thumbObj.IntOf("w").to_s() + ", height=" + thumbObj.IntOf("h").to_s() + "\n"; |
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