'Pre-populate form field with the text from a <p> using JavaScript

I have this on a page:

<p class="test" style="width: 300px" title="intro">Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p>

Underneath, I want to have a hidden field... On clicking on the submit button, I would like the text from <p> with class "test" to pre-fill the hidden field.

Is this possible?

UPDATE

Have done this.. but:

When the page loads, I get a popup with the contents of the field. Can this be stopped?
I have the content in the <p> changing... can we also make the field 'update' when the content changes?

Solution 1:^[1]

If your p doesn't change why don't you use simple jQuery assignment on document ready?

$(function() {
  $("#MyInput").val($("#TargetP").text());
  alert($("#MyInput").val());
});

Demo

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	Oybek

'Pre-populate form field with the text from a <p> using JavaScript

Solution 1:[1]

Sources

Related Questions

Solution 1:^[1]