pdswan · December 15, 2015 00:09 · fabiankessler · Jul 13, 2013
diff --git a/example.js b/example.js
 var data
 function possiblyAsync(callback) {
  if (alreadyLoaded) {
    callback(data)
  } else {
    asyncLoad(function(loadedData) {
      data = loadedData
      callback(data)
    })
  }
 }

 // results in digest already in progress
 // when already loaded
 function deferPossiblyAsync = function() {
  var deferred = $q.defer()
  possiblyAsync(function(data) {
    $scope.$apply(function() {
      deferred.resolve(data)
    })
  })
  return deferred.promise
 }

 // works, but feels wrong
 // referenced at 
 // http://stackoverflow.com/questions/12729122/prevent-error-digest-already-in-progress-when-calling-scope-apply
 function deferPossiblyAsync = function() {
  var deferred = $q.defer()
  possiblyAsync(function(data) {
    if ($scope.$$phase) {
      deferred.resolve(data)
    } else {
      $scope.$apply(function() {
        deferred.resolve(data)
      })
    }
  })
  return deferred.promise
 }

 // UPDATE:
 // does NOT work in all cases. woops.
 //
 // works and is cleaner, but "makes no guarantees as to when expression will be run"
 // http://docs.angularjs.org/api/ng.$rootScope.Scope#$evalAsync
 function deferPossiblyAsync = function() {
  var deferred = $q.defer()
  possiblyAsync(function(data) {
    $scope.$evalAsync(function() {
      deferred.resolve(data)
    })
  })
  return deferred.promise
 }
	var data
	function possiblyAsync(callback) {
	if (alreadyLoaded) {
	callback(data)
	} else {
	asyncLoad(function(loadedData) {
	data = loadedData
	callback(data)
	})
	}
	}

	// results in digest already in progress
	// when already loaded
	function deferPossiblyAsync = function() {
	var deferred = $q.defer()
	possiblyAsync(function(data) {
	$scope.$apply(function() {
	deferred.resolve(data)
	})
	})
	return deferred.promise
	}

	// works, but feels wrong
	// referenced at
	// http://stackoverflow.com/questions/12729122/prevent-error-digest-already-in-progress-when-calling-scope-apply
	function deferPossiblyAsync = function() {
	var deferred = $q.defer()
	possiblyAsync(function(data) {
	if ($scope.$$phase) {
	deferred.resolve(data)
	} else {
	$scope.$apply(function() {
	deferred.resolve(data)
	})
	}
	})
	return deferred.promise
	}

	// UPDATE:
	// does NOT work in all cases. woops.
	//
	// works and is cleaner, but "makes no guarantees as to when expression will be run"
	// http://docs.angularjs.org/api/ng.$rootScope.Scope#$evalAsync
	function deferPossiblyAsync = function() {
	var deferred = $q.defer()
	possiblyAsync(function(data) {
	$scope.$evalAsync(function() {
	deferred.resolve(data)
	})
	})
	return deferred.promise
	}