In JavaScript, undefined is a special value indicating that a variable or property has not been assigned a value. In the context of the onChange property, if it is set to undefined, that means no function or action will be triggered when the value of the input element is changed. It essentially disables the onChange event handling for that element.
Asked: 2021-06-23 11:00:00 +0000
Seen: 8 times
Last updated: Mar 07 '22