Creating A Javascript MultiDimentional Array From input data values

Question

I am working with some number of Number fields on a table.The table contains Item Name, Unit Price and Number Filed which is Quantity.Each Time Amount is increased or decreased i want an array of products/items which will contain item name, item unit price, item Amount , total price of that item.

For example like this

items = 
 [
    ['Name', '5', '2', '10'],
    ['Name2', '15', '2', '30'],
 ]

If amount is zero Then that item will not take place in the array.

jQuery(document).ready(function() {
  jQuery(document).on('input', '.se-ticket-qty', function() {
    var items = GetItems();

    // jQuery('input#items').val(items);
    console.log(items);
  });

  function GetItems() {
    jQuery(".se-ticket-qty").each(function(index) {
      var items = [];
      var item_name = jQuery(this).data('name');
      var unit_price = parseFloat(jQuery(this).data('unit-price'));
      var amount = parseFloat(jQuery(this).val());
      var totalPrice = unit_price * amount;

      items = [item_name, unit_price, amount, totalPrice];
    });
    return items;
  }
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
  <tr>
    <th>Front Row</th>
    <td><span class="se-curency">$ </span>5</td>
    <td>
      <input min="0" data-name="Front Row" data-unit-price="5" class="se-ticket-qty" type="number" value="0" />
    </td>
  </tr>
  <tr>
    <th>VIP Seat</th>
    <td><span class="se-curency">$ </span>10</td>
    <td>
      <input min="0" data-name="VIP Seat" data-unit-price="10" class="se-ticket-qty" type="number" value="0" />
    </td>
  </tr>
</table>

Satpal · Accepted Answer · 2018-06-25 06:12:43Z

You are reassigning items to a new Array

Initialize array outside each block
Use .push() method to populate new array Element
Use camelCase i.e. unitPrice for dashed keys when using .data() method.
Add condition statement for zero

Code

function GetItems() {
  var items = []; //Initialize 
  jQuery(".se-ticket-qty").each(function(index) {
    var item_name = jQuery(this).data('name');
    var unit_price = parseFloat(jQuery(this).data('unitPrice'));
    var amount = parseFloat(jQuery(this).val());
    //Add condtion for zero
    if (amount > 0) { 
      var totalPrice = unit_price * amount;
      items.push([item_name, unit_price, amount, totalPrice]); //Use push
    }
  });
  return items;
}

jQuery(document).on('input', '.se-ticket-qty', function() {
  var items = GetItems();

  console.clear();
  console.log(items);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
  <tr>
    <th>Front Row</th>
    <td><span class="se-curency">$ </span>5</td>
    <td>
      <input min="0" data-name="Front Row" data-unit-price="5" class="se-ticket-qty" type="number" value="0" />
    </td>
  </tr>
  <tr>
    <th>VIP Seat</th>
    <td><span class="se-curency">$ </span>10</td>
    <td>
      <input min="0" data-name="VIP Seat" data-unit-price="10" class="se-ticket-qty" type="number" value="0" />
    </td>
  </tr>
</table>

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