使用echarts防止出现“There is a chart instance already initialized on the dom.”的警告

?

1 2 3 4 5 6 7 8 9 10

var myChart; function historyMapInit(query_date) {     //防止出现“There is a chart instance already initialized on the dom.”的警告     //在使用echarts发现需要及时对新建的myChart实例进行销毁,否则会出现上述警告     console.log(myChart != null && myChart != "" && myChart != undefined);     if (myChart != null && myChart != "" && myChart != undefined) {         myChart.dispose();     } 　　 myChart = echarts.init(document.getElementById('result_monthtotle_maps_id')); }