Short circuiting

Short Circuiting

// Short Circuting -> Use any data type, return ANY data type
console.log('---- ( OR ) ----'); // return true value or last Value
console.log(3 || 'Jonas');
console.log('' || 'Jonas');
console.log(true || 0);
console.log(undefined || null);
console.log(undefined || 0 || '' || 'hello' || 23 || null);

// restaurant.numGuest = 23
const guests1 = restaurant.numGuest ? restaurant.numGuest : 10;
console.log(guests1); // restaurant.numGuest is not there so value will b2e 10

const guest2 = restaurant.numGuest || 10;
console.log(guest2); // restaurant.numGuest is false value so 10 will be value

console.log('---- ( AND ) ----'); // return the falsy Value or last Value
console.log(0 && 'Jonas'); // 0
console.log(7 && 'Jonas'); // Jonas

console.log('Hello' && 23 && null && 'jonas'); // null

// Practical Example
if (restaurant.orderPizza) {
    restaurant.orderPizza('James', 'Spanich', 'cabbage'); // James ['Spanich', 'cabbage']
}

restaurant.orderPizza && restaurant.orderPizza('James', 'Spanich', 'cabbage'); // James ['Spanich', 'cabbage']