The onmouseleave property of the GlobalEventHandlers mixin is the event handler for processing mouseleave events.

The mouseleave event is fired when a pointing device (usually a mouse) is moved off the element that has the listener attached.

element.onmouseleave = handlerFunction;
var handlerFunction = element.onmouseleave;

handlerFunction is either null or a JavaScript function specifying the handler for the event.

• mouseleave
• DOM event handlers