const speedCanvas = document.getElementById("speedChart");

​

Chart.defaults.font.family = "Teko";

Chart.defaults.font.size = 22;

Chart.defaults.color = "black";

​

let speedData = {

  labels: ["0s", "10s", "20s", "30s", "40s", "50s", "60s"],

  datasets: [{

    label: "Car Speed (mph)",

    data: [0, 59, 75, 20, 20, 55, 40]

  }]

};

​

let lineChart = new Chart(speedCanvas, {

  type: 'line',

  data: speedData

});