Detailed explanation of the properties of the custom directive replace in angularJs

<div ng-app="module">
  <div my-exam></div>
 </div>
 <script>
  var m = ('module', []);
  ('myExam', [function () {
   return {
    restrict: 'EA',
    template: '<h1>Welcome to browse Lingling on the road</h1>',
    /* When the value is true, replace the parent, that is, <div my-exam></div> becomes <h1>Welcome to browse Lingling on the road</h1>*/
    /* When the value is false, put it in the parent level, that is, <div my-exam></div> becomes <div my-exam><h1>Welcome to browse Lingling on the road</h1></div>*/
    replace: false
   }
  }]);
 &lt;/script&gt;