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Asked: 2026-06-18T03:53:14+00:00

Possible Duplicate: Get Default Value From select field Javascript I use a javascript function

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Possible Duplicate:
Get Default Value From select field Javascript

I use a javascript function and the ‘window.beforeunload’ property to check to see if the user has made any changes to my web form before leaving the page. In this function I compare the defaultValue of the text fields with the value. However I have added two ListBoxes to the form and the defaultValue method isn’t working for them. What can I use in its place for the Selects?

Text field example:

if(document.forms['form2']['itemID'].value != document.forms['form2']['itemID'].defaultValue)
{return 'There are unsaved changes in the form!'}
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1 Answer

  1. Editorial Team

    It’s defaultSelected for select’s option elements.

    REF: https://developer.mozilla.org/en-US/docs/DOM/HTMLOptionElement

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