down Angular digest cycles For example, large tables with lots of {{ cellValues }} To help mitigate this problem, Angular 1.3 natively supports “one time binding” Once an expression evaluates to a non-undefined value, its watcher is automatically deregistered Prefix the expression with :: <span>Welcome, {{ ::user.name }}.</span> <div ng-‐repeat=“user in ::users | filter:{active: true}”> Built into $parse (i.e., no special $watch syntax required in custom directives) 7