Question

mapv.js:5656 Uncaught TypeError: Cannot read property 'length' of undefined
    at Object.getDataSet (mapv.js:5656)
    at Object.success (qianxi.html:36)
    at i (jquery.min.js:2)
    at Object.fireWith [as resolveWith] (jquery.min.js:2)
    at A (jquery.min.js:4)
    at XMLHttpRequest.<anonymous> (jquery.min.js:4)
getDataSet @ mapv.js:5656
(anonymous) @ qianxi.html:36
i @ jquery.min.js:2
fireWith @ jquery.min.js:2
A @ jquery.min.js:4
(anonymous) @ jquery.min.js:4

Answer 1

您好，从报错来看，只是再获取mapv定义的dataset时候底层报的错，可能原因是 var dataSet2 = new mapv.DataSet(data2);  这个data2您设置的数据array对象吗？