尝试/捕获块无法处理发生的错误

Question

This try catch block doesn't seem to catch the error that occurs, which is strange, considering I have a similar try catch block for the registration part of the site. This handles the login. The error occurs at the third line email: $scope.authInfo.email and throws this error:

Error: Firebase.authWithPassword failed: First argument must contain the key "email" with type "string"

This occurs when the email format is wrong, for example test@ . So when it is I want an error message to be set in the catch block.

Does anyone know why this try catch isn't working?

try {
    $scope.syncAuth.$authWithPassword({
        email: $scope.authInfo.email,
        password: $scope.authInfo.password
    }).then(function(authData) {
        $scope.isSuccessful = true;
        $scope.success = 'You have successfully logged in - Redirecting...';
        $rootScope.loggedIn = true;
        $timeout($scope.redirectUser, 3000);
    }).catch(function(error) {

        switch (error.code) {

            case 'INVALID_USER': $scope.errors.push('The email you have entered is not a registered user.'); 
                                break;

            case 'INVALID_PASSWORD': $scope.errors.push('Invalid password.'); 
                                break;
        }
    });
}
catch (err) {
    $scope.errors.push('Invalid email format.')
}

Answer 1

Look at the source code here of $authWithPassword method. As you can see if error will be thrown - firebase will return rejected promise. So you can handle your error in the promise catch block:

$scope.syncAuth.$authWithPassword({
    email: $scope.authInfo.email,
    password: $scope.authInfo.password
})
.catch(function(error) {
    switch (error.code) {
        case 'INVALID_USER': 
            $scope.errors.push('The email you have entered is not a registered user.');
            break;
        case 'INVALID_PASSWORD': 
            $scope.errors.push('Invalid password.');
            break;
        default:
            $scope.errors.push('Invalid email format.')
    }
    throw error;
})
.then(function(authData) {
    $scope.isSuccessful = true;
    $scope.success = 'You have successfully logged in - Redirecting...';
    $rootScope.loggedIn = true;
    $timeout($scope.redirectUser, 3000);
});