var a = "Welcome to angular js";
console.log(a.split(" "));
var a = "welcome to angular js"
console.log(a.split(" "));
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script>
Try this code,
var a = "welcome to angular js"
console.log(a.split(" ")[2]);