index([index])
Class: Button. Method inherited from UIComponent.
Description:
Sets of gets an index (z-order) of this component if it is added to a container, otherwise returns null.
Larger value brings component forward, smaller to the back, like z-index in CSS.
Parameters:
| Name | Type | Description |
|---|---|---|
|
|
number |
Returns:
If value is provided, then this component is returned, if component has no parent then null is returned, otherwise index is returned.
Type: this | null | number