javascript - Generic session variable key template helper with Meteor -

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how can make following helper more generic can set arbitrary session vars matching template vars , retrieve them without such repetitive pattern?

template.feedback5.helpers({   'posx': function() {     return session.get('posx');   },   'dragposition': function() {     return session.get('dragposition');   },   'stuck': function() {     return session.get('stuck');   },   'dragging': function() {     return session.get('dragging');   } });

you can register global helper session variable given key :

template.registerhelper("getsession",function(key){   return session.get(key); });

and use in spacebars templates :

{{getsession "posx"}}

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