web-programming/chart.html at master · webprogramming-hansei/web-programming · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <title>chart.js 활용</title>
    <script src="https://cdn.jsdelivr.net/npm/chart.js@3.5.1/dist/chart.min.js"></script>
  </head>
  <body>
    <canvas id="myChart" width="800" height="400"></canvas>
    <script>
      // JavaScript Object
      /*
       {
         key1: value1,
         key2: value2,
         key3: value3
       }
      */
      const address = "경기도 군포시 산본 xxxxxx";
      const student = {
        name: "박종진",
        studentNo: 200300000,
        age: 38,
        email: "pjj1029@hansei.ac.kr",
        address,
      };

      // const address = "경기도 군포시 산본 xxxxxx";
      // student.address = address;
      // student["address"] = address;

      console.log(student.name, student.age, student.address);

      // JavaScript Array (배열)
      /*
       [1, 2, 3, 4], ["a", "b", "c", "d"], [student, student1, student2]
      */
      const numberArray = [1, 2, 3, 4];
      console.log(numberArray[0], numberArray[1], numberArray[2]);
      for (let i = 0; i < numberArray.length; i++) {
        console.log(numberArray[i]);
      }

      var ctx = document.getElementById("myChart").getContext("2d");
      var myChart = new Chart(ctx, {
        type: "line",
        data: {
          labels: ["1주차", "2주차", "3주차", "4주차", "5주차", "6주차"],
          datasets: [
            {
              label: "출석인원",
              data: [90, 31, 29, 25, 29, 20],
              backgroundColor: [
                "rgba(255, 99, 132, 0.2)",
                "rgba(54, 162, 235, 0.2)",
                "rgba(255, 206, 86, 0.2)",
                "rgba(75, 192, 192, 0.2)",
                "rgba(153, 102, 255, 0.2)",
                "rgba(255, 159, 64, 0.2)",
              ],
              borderColor: [
                "rgba(255, 99, 132, 1)",
                "rgba(54, 162, 235, 1)",
                "rgba(255, 206, 86, 1)",
                "rgba(75, 192, 192, 1)",
                "rgba(153, 102, 255, 1)",
                "rgba(255, 159, 64, 1)",
              ],
              borderWidth: 1,
            },
          ],
        },
        options: {
          scales: {
            y: {
              beginAtZero: true,
            },
          },
        },
      });
    </script>
  </body>
</html>