Is there an implicit transformation or action involved when the promise chain is resolved or rejected in $q?

Is there an intrinsic digest/apply included when the promise chain is resolved/rejected in $q?

I recently switched from using $q to q in my code and it seems like a digest is no longer happening, leading to different outcomes. What could be causing this change in behavior?

Answer №1

Furthermore, it encompasses specific details as long as the QProvider is defined in the following manner:

function $QProvider() {
  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {
    return qFactory(function(callback) {
      $rootScope.$evalAsync(callback); // ! $evalAsync()
    }, $exceptionHandler);
  }];
}

Within this function definition, there exists a concise approach to the method .$evalAsync() for version 1.2.28:

$evalAsync: function(expr) {
    // if we are outside of an $digest loop and this is the first time we are scheduling async
    // task also schedule async auto-flush
    if (!$rootScope.$$phase && !$rootScope.$$asyncQueue.length) {
      $browser.defer(function() {
        if ($rootScope.$$asyncQueue.length) {
          $rootScope.$digest(); // ! $digest()
        }
      });
    }

    this.$$asyncQueue.push({scope: this, expression: expr});
},

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