Bug `TypeError: e is undefined`

[Leonard Brünings]

With the published version of e7b086e, as there are no source maps (#56) I can only give this unhelpful error message.

Uncaught TypeError: e is undefined
    plugins index.ts:94
    y index.ts:94
[index.ts:94:77](https://huww98.github.io/src/core/index.ts)
    plugins index.ts:94
    map self-hosted:221
    y index.ts:94

[胡玮文]

I will look at the source map issue.

Could you try this demo https://huww98.github.io/TimeChart/demo/line_style.html and share the error message? This one is not using the minimized version.

[Leonard Brünings]

The error is not in that demo, it is in my local chart, which is also using timechart.plugins_extra.min.js. Anyway, even with the umd version the error is still reported for index.ts:94 and FF wants to open the sourcemap instead of jumping to the js version.

[胡玮文]

So, I assume this error is not specific to Mac? Could you share some code for me to reproduce it?

If you are using the plugins, note that now you need tooltip: new TimeChartTooltipPlugin({enabled: true, ...}), instead of the old tooltip object. I suspect you have specified some plugin as undefined

[Leonard Brünings]

Ok, using

      tooltip: new TimeChart.plugins.TimeChartTooltipPlugin({
        enabled: true,
        xFormatter: (x) => new Date(x + baseTime).toLocaleString([], { hour: '2-digit', minute: '2-digit', second: '2-digit', fractionalSecondDigits: 3 })
      }),

instead of

tooltip: TimeChart.plugins.tooltip,

fixed it. For me it is not totally clear, when to use the new plugin, and when to use the reference to the built-in instance.

[胡玮文]

The built-in instance is now removed. You cannot use it anymore from beta.9