es6 concatenate arrays code example
Example 1: es6 concat array
let fruits = ["apples", "bananas"];
let vegetables = ["corn", "carrots"];
let produce = [...fruits, ...vegetables];
//["apples","bananas","corn","carrots"]
Example 2: javascript merge two array with spread operator
const a = ['to', 'code'];
const b = ['learning', ...a, 'is', 'fun'];
console.log(b); //> ['learning', 'to', 'code', 'is', 'fun']