concat()
ES3+Merges two or more arrays into a new array.
Syntax
array.concat(value1, value2, ...)Parameters
values Array | any Arrays or values to concatenate
Return Value
Array
A new array instance
Examples
JavaScript
const a = [1, 2];
const b = [3, 4];
const c = a.concat(b);
console.log(c);Output:
// [1, 2, 3, 4]