how to conact array code example

Example 1: join 2 array in javascript

var array1 = ["Vijendra", "Singh"];
var array2 = ["Singh", "Shakya"];

console.log(array1.concat(array2));

Example 2: js join two arrays

[1,2,3].concat([4,5,6])
// [1,2,3,4,5,6]