JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app="myApp">
  <div ng-controller="myController as ctrl">
    AngularJS {{ ctrl.version }} says !!foobar is <span ng-show="!!ctrl.foobar">truthy</span><span ng-hide="!!ctrl.foobar">falsy</span>
    
  </div>
</div>

CSS

body { font: 13px "Lucida Console", Monaco, monospace }

JavaScript

angular.module("myApp", [])
  .controller("myController", function() {
    var vm = this;

    vm.foobar = [];
    vm.version = angular.version.full;
  });