checkVisibility method

bool checkVisibility([ CheckVisibilityOptions options ])

The checkVisibility() method of the Element interface checks whether the element is visible.

The method returns false in either of the following situations:

• The element doesn't have an associated box, for example because the CSS display property is set to none or contents.
• The element is not being rendered because the element or an ancestor element sets the property to hidden.

The optional parameter enables additional checks to test for other interpretations of what "visible" means. For example, you can further check whether an element has an opacity of 0, if the value of the element visibility property makes it invisible, or if the element property has a value of auto and its rendering is currently being skipped.

Implementation

external bool checkVisibility([CheckVisibilityOptions options]);