change particular line chart series colour dynamically in line charts - Javascript highcharts

Javascript examples for highcharts:Line Chart

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Description

change particular line chart series colour dynamically in line charts

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <title>Highcharts Demo</title> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
   </head> 
   <body> 
      <script src="https://code.highcharts.com/highcharts.js"></script> 
      <script type="text/javascript" src="https://code.highcharts.com/modules/exporting.js"></script> 
      <div id="container" style="height: 400px; max-width: 800px; margin: 0 auto"></div> 
      <script type="text/javascript">
function zones(colors) {//from  w  ww  .jav  a2 s.c o m
  return [{
    value: 3,
    dashStyle: 'solid',
    color: colors[0],
    fillColor: '#7cb5ec'
  }, {
    value: 8,
    dashStyle: 'dot',
    color: colors[1]
  }, {
    value: 11,
    dashStyle: 'solid',
    color: colors[2],
    fillColor: colors[2]
  }]
}
const colors = [
  ['#7cb5ec', '#FFA262', '#7cb5ec'],
  ['#7cb5ec', '#8bbc21', '#7cb5ec']
]
const chart = Highcharts.chart('container', {
  xAxis: {
    categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov']
  },
  series: [{
    data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6],
    zoneAxis: 'x',
    zones: zones(colors[0])
  }]
});
(() => {
  let i = 0
  setInterval(() => {
    chart.series[0].update({
      zones: zones(colors[++i % 2])
    })
  }, 2000)
})()

      </script>  
   </body>
</html>

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