var EventEmitter = require('events').EventEmitter;
var emitter = new EventEmitter();
emitter.defaultMaxListeners = 1;
(function abu(){
console.log('abu');
emitter.on('ali', function(e) {
console.log('ali');
});
})();
(function ahchange(){
console.log('ahchange');
emitter.on('ali', function(e) {
console.log('alix');
});
})();
(function ahchangew(){
console.log('ahchangew');
emitter.on('ali', function(e) {
console.log('alixbbbw');
});
})();
// tinggalkan satu yg first listerner saja.
emitter.listeners('ali').forEach(function(fn,i) {
if(i> 0){
emitter.removeListener('ali', fn);
}
});
emitter.emit('ali');
