var yourArray = [1, 2, 3, "four"]
// you can unpack those values by doing:
[a, b, c, d] = yourArray // If you want to unpack in variables
...yourArray // If you want to unpack directly where the "..." is (This One is mostly used to give argument to a function)
//Exemple:
consloe.log(yourArray) // will print: [1, 2, 3, "four"]
consloe.log(...yourArray) // will print: 1 2 3 "four"// In an array destructuring from an array of length N specified on the right-hand side of the assignment, if the number of variables specified on the left-hand side of the assignment is greater than N, only the first N variables are assigned values. The values of the remaining variables will be undefined.
const foo = ['one', 'two'];
const [red, yellow, green, blue] = foo;
console.log(red); // "one"
console.log(yellow); // "two"
console.log(green); // undefined
console.log(blue); //undefinedlet cars = ['ferrari', 'tesla', 'cadillac'];
let [car1, car2, car3] = cars;
console.log(car1, car2, car3); // Prints: ferrari tesla cadillaceslint use array destructuring// destructuring assignment in javascript
// object destructuring
let person = {
name: "Chetan",
age: 30,
country: "India"
};
const { name, age } = person;
console.log(name);
//expected output: "Chetan"
console.log(age);
//expected output: 30
console.log(country);
//expected output: Uncaught ReferenceError: country is not defined
// Array destructuring
const num = [1,2,3];
const [one, two, three] = num;
console.log(one); // 1
console.log(two); // 2
console.log(three); // 3