[Solved]-Is it possible to plot points on a line graph using two separate arrays? (highcharts)-Highcharts

you need to map your data to the format required by highcharts. in your case:

• an array of arrays with [x, y] values:

  series: [{
    data: jsondata2.time.map((x, index) => [x, jsondata2.volt[index]])
  }]
  

• or an array of objects with { x, y } values:

  series: [{
    data: jsondata2.time.map((x, index) => ({ x: x, y: jsondata2.volt[index]}))
  }]
  

live demo: https://codesandbox.io/s/fancy-cloud-mx9z-mx9ze?file=/index.js

api reference: https://api.highcharts.com/highcharts/series.line.data