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