Concat-2

Example of JavaScript concat() function:

<!DOCTYPE html>
<html>
 <head>
    <title>Welcome to LearnKode - A code learning platform</title>
</head>
  <body>
<button onclick="joinArrays()">Concatinate arrays</button>
<p id="sample"></p>
<script>
function joinArrays() {
    var countries = ["India", "Pakistan"];
    var states = ["Punjab", "Haryana", "Himachal"];
    var cities =["Chandigarh","Delhi","Peshawar"];
    var result = countries.concat(states,cities); 
    document.getElementById("sample").innerHTML = result;
}
</script>

      </body>
</html>

Output