| Name | Type | Description |
|---|---|---|
| length | number | Return the current length of the stack. |
| push | number | Adds a HTML element to a focus stack and returns the new length of the stack. Generally, you will probably want to call this before you transition focus onto a new element. ```ts this._focusStack.push(this._doc.activeElement); ``` |
| focus | Focuses on the HTML element at the top of a stack. ```ts this._focusStack.push(this._doc.activeElement); ``` | |
| pop | HTMLElement | Removes the HMTL element at the top of a stack and focuses on it. |