array to string and string to array javascript code example

Example 1: javascript convert in a string the items of an array

const arr = [1, 2, 'a', '1a'];
const str = arr.toString();
console.log(str); //> "1,2,a,1a"

Example 2: string to array javascript

const string = "Hello!";

console.log([...string]); // ["H", "e", "l", "l", "o", "!"]