Angular1: Empty Fiddle
HTML
<div ng-app="app">
<div ng-controller="TestingCtrl as vm">
<h2>{{vm.title}}</h2>
<span class="fa fa-remove fa-lg text-danger" style="cursor: pointer;"
ng-show="location.isEdit"
ng-click="readOnly===false && (vm.cancel(), location.isEdit = false, updateClicked = false)"></span>
</div>
</div>
JavaScript
angular.module('app', [])
.controller('TestingCtrl', [function TestingCtrl($scope) {
var vm = this;
vm.title = 'Angular 1 testing';
vm.cancel = () => console.log("ciao")
}])