🔁 DIGEST & SCOPES

Term Glossary

• Digest cycle

  Loop that dirty-checks every watcher.
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• $apply

  Enter the digest from outside Angular.
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• $watch

  Register a function to react to scope changes.
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• Dot rule

  Always have a dot in ng-model.
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• $digest

  Run dirty-checking on this scope down.
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• $evalAsync

  Queue work to run within the current/next digest.
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• $timeout

  setTimeout wrapped in $apply.
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• $interval

  setInterval wrapped in $apply.
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• scope.$on('$destroy')

  Cleanup hook.
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• $watch deregistration

  Watch returns a function to remove itself.
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• Watcher budget

  ~2000 watchers per page is the soft ceiling.
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• $applyAsync

  Debounce many $apply calls.
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• bindToController

  Bind isolated scope into controller, not $scope.
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• $digest TTL

  Default 10 passes before throwing.
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• Prototypal inheritance

  Child scopes read up the chain.
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