Let tabbableSelector
tabbableSelector: string = "a[href], area[href], input:not([disabled]):not([tabindex=\'-1\']), " +"button:not([disabled]):not([tabindex=\'-1\']),select:not([disabled]):not([tabindex=\'-1\']), " +"textarea:not([disabled]):not([tabindex=\'-1\']), " +"iframe, object, embed, *[tabindex]:not([tabindex=\'-1\']), *[contenteditable=true]"
Let tabbableSelectorIgnoreTabIndex
tabbableSelectorIgnoreTabIndex: string = "a[href], area[href], input:not([disabled]), " +"button:not([disabled]),select:not([disabled]), " +"textarea:not([disabled]), " +"iframe, object, embed, *[tabindex], *[contenteditable=true]"