var hege = ["Cecilie", "Lone"]; var stale = ["Emil", "Tobias", "Linus"]; var children = hege.concat(stale);
//ES6 const array3 = [...array1, ...array2];
[1,2,3].concat([4,5,6]) // [1,2,3,4,5,6]
const letters = ['a', 'b', 'c']; const numbers = [1, 2, 3]; letters.concat(numbers); // result in ['a', 'b', 'c', 1, 2, 3]