on.js
373 Bytes
/**
* Module exports.
*/
module.exports = on;
/**
* Helper for subscriptions.
*
* @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
* @param {String} event name
* @param {Function} callback
* @api public
*/
function on (obj, ev, fn) {
obj.on(ev, fn);
return {
destroy: function () {
obj.removeListener(ev, fn);
}
};
}