what_happens_if_we_add_two_arrays.md

What happens if we add two arrays

What happens if we add two arrays?

In JavaScript, adding two arrays does not perform element-wise addition. Instead, it concatenates them into a new array, but if you add them directly, it will convert them to strings and concatenate those.

Example:

let arr1 = [1, 2, 3];
let arr2 = [4, 5, 6];
console.log(arr1 + arr2);  // Output: '1,2,34,5,6'

Tags: intermediate, JavaScript, Arrays