Example 1: javascript object destructuring
let obj = {name: 'Max', age: 22, address: 'Delhi'};
const {name, age} = obj;
console.log(name);
console.log(age);
console.log(address);
let a, b, rest;
[a, b] = [10, 20];
console.log(a);
console.log(b);
[a, b, ...rest] = [10, 20, 30, 40, 50];
console.log(rest);
Example 2: Destructuring Assignment
const HIGH_TEMPERATURES = {
yesterday: 75,
today: 77,
tomorrow: 80
};
const {today, tomorrow} = HIGH_TEMPERATURES;
const today = HIGH_TEMPERATURES.today;
const tomorrow = HIGH_TEMPERATURES.tomorrow;
console.log(today);
console.log(tomorrow);
console.log(yesterday);
Example 3: destructuring objects
({ a, b } = { a: 10, b: 20 });
console.log(a);
console.log(b);
({a, b, ...rest} = {a: 10, b: 20, c: 30, d: 40});
console.log(a);
console.log(b);
console.log(rest);
Example 4: javascript deconstruct object
const objA = {
prop1: 'foo',
prop2: {
prop2a: 'bar',
prop2b: 'baz',
},
};
const { prop1, prop2: { prop2a, prop2b } } = objA;
console.log(prop1);
console.log(prop2a);
console.log(prop2b);
Example 5: Object destructuring
Object Destructuring =>
The destructuring assignment syntax is a JavaScript expression that makes it
possible to unpack values from arrays,
or properties from objects, into distinct variables.
example:
const user = {
id: 42,
is_verified: true
};
const {id, is_verified} = user;
console.log(id);
console.log(is_verified);
Example 6: array destructuring
const myArray = ["a", "b", "c"];
const x = myArray[0];
const y = myArray[1];
console.log(x, y);
const myArray = ["a", "b", "c"];
const [x, y] = myArray;
console.log(x, y);