// call something on iterator step with safe closing on errorvaranObject=require('./_an-object');module.exports=function(iterator,fn,value,entries){try{returnentries?fn(anObject(value)[0],value[1]):fn(value);// 7.4.6 IteratorClose(iterator, completion)}catch(e){varret=iterator['return'];if(ret!==undefined)anObject(ret.call(iterator));throwe;}};