Answers for "how to mutate nested object in javascript"

1

usestate nested object

const [currentApp, setCurrentApp] = useState({
        userID: null,
        hospitalName: null, 
        hospitalID: null,
        date: null,
        time: null,
        timestamp: null,
        slots: 1,
        appointmentType: null
    })
    
const [appointmentType, setAppointmentType] =  useState({
        Granulocytes: {
            bloodType:null,
            message: null
        }
})

const handleGranChange = (e) => {
        setAppointmentType({...appointmentType, Granulocytes : {
            ...appointmentType.Granulocytes, 
            [e.target.id] : e.target.value}
        })
		setCurrentApp({ ...currentApp, ['appointmentType'] : appointmentType  })
        console.log(currentApp)
}
Posted by: Guest on July-06-2020
1

how to access nested objects in javascript

var ourStorage = {
  "desk": {
    "drawer": "stapler"
  },
  "cabinet": {
    "top drawer": { 
      "folder1": "a file",
      "folder2": "secrets"
    },
    "bottom drawer": "soda"
  }
};
ourStorage.cabinet["top drawer"].folder2;  // "secrets"
ourStorage.desk.drawer; // "stapler"
Posted by: Guest on July-09-2020

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