js循环array，json，map

var str = '[{"uname":"王强","day":"2010/06/17"},{"uname":"王海云","day":"2010/06/11"}]';  for(var i=0;i<jsonList.length;i++){  　　　　for(var key in jsonList[i]){         　　alert("key："+key+",value："+jsonList[i][key]);         }  　　}

var mapColumn = {             "vdoing" : "访问深度",             "_visitorNumber": "访问量",             "_pageViews": "浏览量",             "_jumpOutRate": "跳出率",             "_avgAccessTime": "平均访问时长",             "_allTargetConvRate": "转化率",             "_orderTotalPrice": "总收益"                 }; var target=[]; for (var key in mapColumn) {             target.push(key);         }

.function text(){     var json = {"options":"[{\"text\":\"王家湾\",\"value\":\"9\"},{\"text\":\"李家湾\",\"value\":\"10\"},{\"text\":\"邵家湾\",\"value\":\"13\"}]"}     json = eval(json.options)    for(var i=0; i<json.length; i++)     {        alert(json[i].text+" " + json[i].value)     }   }