I have this code, but I want to add it in case if the value in the price field is equal to a string, how can this value be discarded and not counted and sum the rest of the values of type number

var theSummry = 0;
$(".price").each(function() {
  theSummry  = parseInt($(this).text());
})
$(".the-total").text(theSummry);

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<table style="width:70%;text-align: center;margin: 30px auto;">
  <tr>
    <th>Person 1</th>
    <th>Person 2</th>
    <th>Person 3</th>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td>Linus</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">10</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">qwe</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">10</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">30</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">10</td>
  </tr>
  <tr class="the-total"></tr>
</table>

<iframe name="sif1" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>

CodePudding user response：

To achieve this you can coalesce the NaN output from trying to parseInt() a string to a 0 value using the logical OR operator:

var theSummry = 0;
$(".price").each(function() {
  theSummry  = parseInt($(this).text(), 10) || 0;
})
$(".the-total").text(theSummry);

table {
  width: 70%;
  text-align: center;
  margin: 10px auto;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<table>
  <tr>
    <th>Person 1</th>
    <th>Person 2</th>
    <th>Person 3</th>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td>Linus</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">10</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">qwe</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">10</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">30</td>
  </tr>
  <tr>
    <td>Emil</td>
    <td>Tobias</td>
    <td class="price">10</td>
  </tr>
  <tr class="the-total"></tr>
</table>

<iframe name="sif2" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>