Highcharts error #14: www.highcharts.com/errors/14

错误原因：数据类型错误，需要的是Number类型，传入的却是String

以为为官网说明：

Highcharts Error #14

String value sent to series.data, expected Number

This happens if you pass in a string as a data point, for example >in a setup like this:

series: [{

     data: [“3”, “5”, “1”, “6”]

}]

Highcharts expects the data values to be numbers. The most >common reason for this is that data is parsed from CSV or from a > XML source, and the implementer forgot to run parseFloat on the >parsed value.

For performance reasons internal type casting is not performed, >and only the first value is checked (since 2.3).

作者：itmyhome