True if the value is a JSON object, false otherwise. 如果值为 JSON 对象则返回 true,否则返回 false
Remarks
This function recursively validates each property value using isJSONValue. For deeply nested objects,
this can result in a large call stack and may hit the stack size limit of the runtime.
Checks if a value is a JSON object.
检查一个值是否为 JSON 对象。