cassiozen

let updatedPassengers = this.state.passengers;
updatedPassengers.push('Mitchell, Vincent M.');
this.setState({passengers:updatedPassengers});

cassiozen

// updatedPassengers is a new array, returned from concat
let updatedPassengers = this.state.passengers.concat('Mitchell, Vincent M.');
this.setState({passengers:updatedPassengers});

cassiozen

// updatedTicket is a new object with the original properties of this.state.ticket 
// merged with the new flightNo.
var updatedTicket = Object.assign({}, this.state.ticket, {flightNo:'1010'});
this.setState({ticket:updatedTicket});

cassiozen

let originalTicket = {
  company: 'Dalta',
  flightNo: '0990',
  departure: {
    airport: 'LAS',
    time: '2016-08-21T10:00:00.000Z'
  },
  arrival: {
    airport: 'MIA',
    time: '2016-08-21T14:41:10.000Z'

cassiozen

newTicket.arrival.airport='MCO'

cassiozen

let student = {name:'John Caster', grades:['A','C','B']}

cassiozen

let newStudent = React.addons.update(student, {grades:{$push: ['A']}})

cassiozen

let newStudent = update(student, {grades:{$set: ['A','A','B']}})

cassiozen

let newTicket = update(originalTicket, {
                         arrival: {
                           airport: {$set: 'MCO'}
                         }
                       });

cassiozen

let newTicket = update(originalTicket,{
                         codeshare: {
                           0: { $set: {company:'AZ', flightNo:'7320'} }
                         }
                       });