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How To Display Multiple List Of Checkboxes Dynamically On Dropdown List

I have a page with a dropdown list which has two dependents (dep1, dep2). However, I managed to create dynamic checkboxes but with only one dependent showing (dep1) source is: How

Solution 1:

I have slightly modified your code. Hope you are expecting this.

var mappingData = {
  "model-A": {
    "destination": ["Destination A1", "Destination A2", "Destination A3"],
    "criteria": ["Criteria A1", "Criteria A2", "Criteria A3"]
  },
  "model-B": {
    "destination": ["Destination B1", "Destination B2", "Destination B3"],
    "criteria": ["Criteria B1", "Criteria B2", "Criteria B3"]
  }
};

function populate(model, destination) {
  var mod = document.getElementById('model');
  var des = document.getElementById('destination');
  var criteria = document.getElementById('criteria');
  des.innerHTML = "";
  criteria.innerHTML = "";
  mappingData[mod.value].destination.forEach(function(item) {
    createCheckBox(item, des)
  });
  mappingData[mod.value].criteria.forEach(function(item) {
    createCheckBox(item, criteria)
  });
}

function createCheckBox(value, parent) {
  var checkbox = document.createElement("input");
  checkbox.type = "checkbox";
  checkbox.name = value;
  checkbox.value = value;

  var label = document.createElement('label')
  label.htmlFor = value;
  label.appendChild(document.createTextNode(value));

  parent.appendChild(checkbox)
  parent.appendChild(label)
  parent.appendChild(document.createElement("br"))
}
<!DOCTYPE html>
<html>

<body>
  Model:
  <select id="model" name="model" onchange="populate(this.id, 'destination')">
    <option value="select">--Select Model--</option>
    <option value="model-A">Model-A</option>
    <option value="model-B">Model-B</option>
  </select>
  <hr /> Destination:
  <div id="destination"></div>
  <hr /> Criteria:
  <div id="criteria"></div>
  <hr />
</body>

</html>

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