[рони]

dima85,

function adddata(){
  myLineChart.data.datasets[0].data.shift();
  myLineChart.data.datasets[0].data.push(Math.floor(Math.random()*80));
  myLineChart.data.labels.shift();
  myLineChart.data.labels.push(now.getHours()+':'+now.getMinutes());
  myLineChart.update();
}