hd/understanding.html at master · henrydaggett/hd · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <select name="" id="" onload="console.log('select loaded')"">
  <option value=" 1">three</option>
    <option value="2" selected>two</option>
  </select>

  <script>
    // this function gets the selected item's dataset - note how "this" is used in the HTML: myFunction(this)
      function myFunction(selection) {
        console.log(selection)
        var opt = selection.options[selection.selectedIndex];
        console.log(opt)
        var price = opt.dataset.price
        console.log(price)
      }
  </script>

  <select id="mySelect" onchange="myFunction(this)">
    <option data-price="250" value="Audi">Audi</option>
    <option data-price="130" value="BMW">BMW</option>
    <option data-price="120" value="Mercedes">Mercedes</option>
    <option data-price="400" value="Volvo">Volvo</option>
  </select>


  <style type="text/css">
    .greenText {
      color: green;
    }
  </style>

  <script type="text/javascript">
    // this function adds an event listener to the select below onload - select dosn't support onload
    window.addEventListener("load", function () {
      console.log(document.getElementById("my_select"))
    }, false);
  </script>

  <select id="my_select">
    <option value="apple">Apple</option>
    <option value="banana">Banana</option>
    <option value="grape">Grape</option>
  </select>

</body>
<script>

  let componentJSON = [
    { "template": "<div class='${layout} ${border}'></div>" },
    {
      "layout": "grid",
      "border": "primary"
    }
  ];

  const template = componentJSON[0].template
  const classes = componentJSON[1]

  let html = template.replace(/\$\{(.*?)\}/g, (match, key) => classes[key]);

  console.log(html);

// this function is showing how to build a new object from an old one
  var content = {
    "items": [{
      "id": "02egnc0eo7qk53e9nh7igq6d48",
      "summary": "Learn to code",
      "start": {
        "dateTime": "2017-03-04T19:00:00+05:30"
      }
    }]
  };

  var results = content.items.map(function (item) {
    return {
      id: item.id,
      title: item.summary,
      start: item.start.dateTime,
      description: ""
    };
  });

  console.log(results);

  // global "selected Object"

  // loop over all inputs and see what their values are
  // when creating the inputs, have them all start with the same ID
  // Maybe onload have them all emit their values! (check if onload fires before they are generated?)
  // will have to work out how to set defaults (probs loop)

  // maybe the selectedObject can kind of exist in the component JSON from the start (cheating?)
  const selectors = {
    content = "Label",
    icon = "",
    size = "",
    type = ""
  }

  // can I put the selector/value in an array instead of object: [selector, value]


  // this function is showing how to replace template strings with regex to put values in them
  let componentJSON = [
    { "template": "<div class='${layout} ${border}'></div>" },
    {
      "layout": "grid",
      "border": "primary"
    }
  ];

  const template = componentJSON[0].template
  const classes = componentJSON[1]

  let html = template.replace(/\$\{(.*?)\}/g, (match, key) => classes[key]);

  console.log(html);


</script>

</html>