<!DOCTYPE html>
<html ng-app="app">
<head>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular-sanitize.js"></script>
<script src="script.js"></script>
</head>
<body ng-controller="PruebaController">
<div>{{mensaje}}</div>
<div ng-bind="mensaje"></div>
<div ng-bind-html="mensaje"></div>
<div ng-non-bindable>{{mensaje}}</div>
</body>
</html>
var app = angular.module("app", ['ngSanitize']);
app.controller("PruebaController", function($scope) {
$scope.mensaje = "Hola <strong>Mundo</strong>";
});
Ejemplos de directivas: ng-bind, ng-bind-html y ng-non-bindable