javascript - Highcharts: update chart when data actualized -

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I am using and I like the chart to update each other. I have it now:

I have a timer window.setInterval (updateChart, 1000); and it executes each second data properly.

But I have no idea about how to make the scene real. It is important that I do not want to attract charts repeatedly every time. I just want to move points and add new ones. Does anyone know how to do this?

See the series. Edepoint

Your updateChart function gets: 

  function update chart () {for (var source = 1; source   
 update.

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