Tryit Editor v2.9

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<!DOCTYPE html>
<html>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body ng-app="">
<p>My cars:</p>
<input type="checkbox" ng-model="all"> Check all<br><br>
<input type="checkbox" ng-checked="all">Volvo<br>
<input type="checkbox" ng-checked="all">Ford<br>
<input type="checkbox" ng-checked="all">Mercedes
<p>Click "Check all" to check all three cars.</p>
</body>
</html>