.concat()

Merges two or more arrays to create a new array.


Examples:

let fruits = ['apple', 'banana'];
let moreFruits = ['orange', 'mango'];
let allFruits = fruits.concat(moreFruits);
console.log(allFruits); // ['apple', 'banana', 'orange', 'mango']

let vegetables = ['carrot', 'pea'];
let food = fruits.concat(vegetables);
console.log(food); // ['apple', 'banana', 'carrot', 'pea']