JavaScript's method of dynamically modifying the content of web elements

This article illustrates how JavaScript dynamically modifies the content of web elements. Share with you for your reference. The specific analysis is as follows:

The JS code below dynamically specifies the content of the element by textContent or innerHTML when the user clicks the submit button

<script type="text/javascript">
function showCard() {
 var message = document.getElementById("CCN").value;
 var element = document.getElementById("mycreditcardnumber");
 element.textContent = message;
//for Firefox
 element.innerHTML = message;
//for IE (why can't we all just get along?)
 return true;
}
</script>
<form name="dynamic" method="get">
<span>Enter Your Credit Card Number:</span>
<input type="text" id="CCN" name="CCN" value="CCN" />
<input type="button" value="submit" onclick="showCard()" />
</form>
<p>Verify your Credit Card Number:
 <span id="mycreditcardnumber">0000-00-0000-00 </span>
</p>

I hope this article has been helpful to your javascript programming.