{ "a": 1, "b": 2, }

JSON-Viewer does not throw (detect) error for non-compliant extra comma after '2'. Same for arrays, such as [1,2,3,]. As discussion below acknowledges some tools like VSCode silently ignore the error, but unfortunately NodeJS does not in compliance with the JSON specification. Kind of frustrating when JSON-Viewer parses OK, but then Node import fails.

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