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08-objects.html
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08-objects.html
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<!DOCTYPE html>
<html>
<head>
<title>Objects</title>
</head>
<body>
<script>
/*
const product = {
name: 'socks',
price: 1090
};
console.log(product);
console.log(product.name);
console.log(product.price);
product.name = 'cotton socks';
console.log(product);
product.newProperty = true;
console.log(product);
delete product.newProperty;
console.log(product);
*/
/*
const product2 = {
name: 'shirt',
['delivery-time']: '1 day ago',
rating:{
stars: 4.5,
count: 87
},
fun: function function1(){
console.log('function inside object');
}
};
console.log(product2);
console.log(product2.name);
console.log(product2['name']);
console.log(product2['delivery-time']);
console.log(product2.rating.count);
product2.fun();
console.log (JSON.stringify(product2));
const jsonString = JSON.stringify(product2);
console.log (JSON.parse(jsonString));
*/
/*Auto-Boxing*/
console.log('hello'.length);
console.log('hello'.toUpperCase());
/*object reference*/
const object1 = {
message: 'hello',
};
/*copy by reference*/
const object2 = object1;
object1.message = 'Good job!';
console.log(object1);
console.log(object2);
const object3 = {
message: 'Good job!'
};
console.log(object3 === object1);
console.log(object1 === object2);
//DESTRUCTURING
//Easier way to take properties out of an object.
const object4 = {
message: 'Good job!',
price: 799
};
// const message = object4.message;
const{message,price} = object4;
console.log(message);
console.log(price);
//Shorthand Property
const object5 = {
// message: message
message,
// method: function function1(){
// console.log('method');
// }
//shorthand method
method(){
console.log('method');
}
};
console.log(object5);
object5.method();
</script>
</body>
</html>