JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app>
    <div ng-controller="AppCtrl"> 
        <a href='#'><img ng-src="{{link}}"/></a>
        <button ng-click="changeLink()">Change Image</button>
    </div>
</div>

JavaScript

function AppCtrl($scope) {
    $scope.link = 'https://farm4.staticflickr.com/3261/2801924702_ffbdeda927_d.jpg';
    $scope.changeLink = function() {
        $scope.link = 'https://farm9.staticflickr.com/8455/8048926748_1bc624e5c9_d.jpg';
    }
}