settimeout in angular

1// var that = this;                             // no need of this line
2this.messageSuccess = true;
3
4setTimeout(()=>{                           //<<<---using ()=> syntax
5      this.messageSuccess = false;
6 }, 3000);

1function myClick() {
2  setTimeout(
3    function() {
4      document.getElementById('div1').style.display='none';
5      document.getElementById('div2').style.display='none';
6    }, 5000);
7}

1var myapp = angular.module("myapp", []);
2
3myapp.controller("DIController", function($scope, $timeout){
4
5    $scope.callAtTimeout = function() {
6        console.log("$scope.callAtTimeout - Timeout occurred");
7    }
8
9    $timeout( function(){ $scope.callAtTimeout(); }, 3000);
10});