# All files / src/layout useMainTabIndex.ts

100% Statements 17/17
100% Branches 3/3
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     "use client";
    import { useUserInteractionMode } from "../interaction/UserInteractionModeProvider.js";

    /**
     * This hook is used to return a tab index of `-1` whenever the user is using a
     * keyboard for the `SkipToMainContent` to work correctly.
     *
     * @remarks \@since 6.0.0
     */
    export function useMainTabIndex(tabIndex?: number): number | undefined {
      const keyboard = useUserInteractionMode() === "keyboard";
      if (keyboard && typeof tabIndex === "undefined") {
        tabIndex = -1;
      }

      return tabIndex;
    }