Learning-React/Chapter9DataToUI.html at master · bwerick/Learning-React · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>From Data to UI</title>
  <script src="https://unpkg.com/react@16/umd/react.development.js"></script>
  <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
  <script src="https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script>

  <style>
    #container {
      padding: 50px;
      background-color: #FFF;
    }
  </style>
</head>
<body>
  <div id="container"></div>

  <script type="text/babel">

    function showCircle() {
      var colors = ["#393E41", "#E94F37", "#1C89BF", "#A1D363", "#e5cafd", "#004389", "#9206bb", "#f648a0", "#c06339", "#abac83", "#93aad0", "#ebc1d4"];
      var ran = Math.floor(Math.random() * colors.length);

      //return circle with random color
      return <Circle bgColor={colors[ran]} />;
    }

    class Circle extends React.Component {
      render() {
        var circleStyle = {
          padding: 10,
          margin: 20,
          display: "inline-block",
          backgroundColor: this.props.bgColor,
          borderRadius: "50%",
          width: 100,
          height: 100,
        };

        return (
          <div style={circleStyle}>
          </div>
        );
      }
    }


    ReactDOM.render(
      <div>
        {showCircle()}
        {showCircle()}
        {showCircle()}
        {showCircle()}
      </div>,
      document.querySelector("#container")
    );
  </script>
</body>

</html>