如何使用setstate在react中更新对象数组中特定对象的属性

Question

I want to update a specific value of specific object of array(array of object) using setState in react context !

here is what i am doing

getFieldData = (inputType, data, id) => {
       const index = this.state.sharedPeople.findIndex(a => a.id == id);
       this.setState({ sharedPeople: [this.state.sharedPeople[index], { email: data }] })}

am not able to update the value by doing this it malfunctions here !! Please guide me the better and correct way of doing this behaviour !

Answer 1

You could

    getFieldData = (inputType, email, id) => {

      let sharedPeople = this.state.sharedPeople.map((person => {
        if(person.id === id){
           person.email = email
      }
      return person
    })

setState({sharedPeople})

}