twitst4tz

twitter statistics web application
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on.js (373B)

      1 
      2 /**
      3  * Module exports.
      4  */
      5 
      6 module.exports = on;
      7 
      8 /**
      9  * Helper for subscriptions.
     10  *
     11  * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
     12  * @param {String} event name
     13  * @param {Function} callback
     14  * @api public
     15  */
     16 
     17 function on (obj, ev, fn) {
     18   obj.on(ev, fn);
     19   return {
     20     destroy: function () {
     21       obj.removeListener(ev, fn);
     22     }
     23   };
     24 }