typescript array cat code example

Example 1: angular append array to another

this.results = [ ...this.results, ...data.results];

Example 2: js combine two arrays

const letters = ['a', 'b', 'c'];
const numbers = [1, 2, 3];

letters.concat(numbers);
// result in ['a', 'b', 'c', 1, 2, 3]