var  expense = {
    type : 'Travel',
    amount: '1800 NZD'
};

// var type = expense.type;
// var amount = expense.amount;
//console.log(type , amount);

// a better way of doing
const {type, amount } = expense;
//const {amount} = expense;
console.log(type , amount);

Another example

var savedFile = {
    extension: 'jpeg',
    name : 'ES 6',
    size : 900
};

function fileSummary(file){
    return `The file ${file.name}.${file.extension} is of size ${file.size}`;
}
console.log(fileSummary(savedFile));

// Not sure whether this is a better way or not.
//Anyways ...

function fileSummary1({name,extension,size},{domain}){
    return `The ${domain}file ${name}.${extension} is of size ${size}`;
}
console.log(fileSummary1(savedFile, {domain:'fasteningcode.com'}));

Another one

const companies = [
    {name: 'Google', location:'Auckland'},
    {name: 'Facebook', location:'Christ church'},
    {name: 'Uber', location:'Wellington'}
];

//To get the location of the first company
// var location = companies[0].location;
// console.log(location);

//better way of doing it
const [{location}] = companies;
console.log(location);

Another one

const Google = {
    locations:['Auckland','Christchurch', 'Wellington']
}
//const {locations} = Google;
//console.log(locations); // Output [ 'Auckland', 'Christchurch', 'Wellington' ]

const {locations : [location]} = Google;
console.log(location); //output - Auckland

Another one from DJ Khaled

//Another example to create an object with key and value pair
const points = [
    [3,6],
    [2,5],
    [1,8]
];

let map = points.map(([x,y])=>{
    return {x,y};
});

console.log(map);