var obj = { one:1, two:2, three:3}; $.each(obj, function(key, val) {     console.log(key);//one   two   three    console.log(val); //1 2 3});var arr1 = [ "aaa", "bbb", "ccc" ];     $.each(arr1, function(i,val){     console.log(i); //0 1 2    console.log(val);//aaa  bbb  ccc    });