Knockout unable to process binding

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情书的邮戳
情书的邮戳 2021-01-23 22:01

How do I bind a text when it is undefined? For example name is not available:

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  • 2021-01-23 22:14

    You can you the $data binding context property which always represents the current view model to access the name through it:

      <tbody data-bind="foreach: records">
        <tr>
          <td data-bind="text: id"></td>
          <td data-bind="text: $data.name"></td>
        </tr>
      </tbody>
    

    With this approach KO won't throw an exception if one of the items in the records does not have a name property.

    Without the $data the identifier named name is undefined. However $data.name is always a valid expression it just returns undefined if the current view model does not have a property named name.

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