How to Detect Vertical Text Overflow in a Div Element?

Overflow Detection in Div Elements

Vertical text overflow in a div element, a common annoyance, can be challenging to detect. Here's how to accurately determine if such overflow exists:

Determining Overflow

To check for vertical text overflow, compare the clientHeight (height of the content area within the div) with the scrollHeight (height of the content including any overflow). If scrollHeight exceeds clientHeight, overflow is present. Utilize the following code:

function GetContainerSize() {
  var container = document.getElementById("tempDiv");
  var message = "The width of the contents with padding: " + container.scrollWidth + "px.\n";
  message += "The height of the contents with padding: " + container.scrollHeight + "px.\n";
  alert(message);
}

Run this function to display the scrollHeight and clientHeight values. If scrollHeight is greater, there is vertical overflow.

Further Reading

For more in-depth information, refer to: http://help.dottoro.com/ljbixkkn.php

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