$q Service in AngularJS

$q Service in AngularJS — a practical guide to AngularJS $q with clear examples you can reuse in real projects.

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Short description

$q.all waits for parallel tasks; $q.reject for errors.

$q tip

var deferred = $q.defer();
// deferred.resolve(value) / deferred.reject(err)
return deferred.promise;