Access method parameters in the the then function in AngularJS

Question

I have following code in AngularJS. I am unable to access the original method parameter of 'preference' within the then function of 'updatePreferenceComplete'.

What is the way to access the original parameter of 'preference' in the above then function?

        function updatePreference(preferenceId, preference) {
        var prefId = angular.isNumber(preferenceId) ? preferenceId : 0;
        logger.info('updatePreference: fetching; preferenceId: ' + prefId);

        var route = userPreferenceConstants.endPoints.PREFERENCE_BY_ID
            .replace('{prefId}', prefId);

        return $http.put(route, preference)
            .then(updatePreferenceComplete)
            .catch(function (message) {
                exception.catcher('XHR failed for updatePreference')(message);
            });

        function updatePreferenceComplete(response) {
            //cannot access preference parameter
            logger.info('updatePreference: complete');
            return response.data;
        }
    }

Which browser are you testing this on? I'm getting the correct variable from func alert. — Omri Aharon
– Omri Aharon, Commented May 1, 2015 at 21:44
Preference should be accessible in this context... and your variable shows up in the alert for me as well in the fiddle. — domitall
– domitall, Commented May 1, 2015 at 21:52
@Sunil Yep, that's why it's weird that you don't see it in your code. — Omri Aharon
– Omri Aharon, Commented May 1, 2015 at 22:06

JB Nizet · Accepted Answer · 2015-05-01 21:57:19Z

2

    return $http.put(route, preference)
        .then(function(response) {
            updatePreferenceComplete(response, preference);
        })
        .catch(function (message) {
            exception.catcher('XHR failed for updatePreference')(message);
        });

    function updatePreferenceComplete(response, preference) {
        // now you can access preference, because it's passed as argument to the function
        logger.info('updatePreference: complete');
        return response.data;
    }

answered May 1, 2015 at 21:57

JB Nizet

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