on hover show tooltip in vue js code example

Example: vue bootstrap tooltip

<div>
  <b-container fluid>
    <b-row class="text-center">
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.top="'Tooltip!'" variant="primary">Top</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.right="'Tooltip!'" variant="primary">Right</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.left="'Tooltip!'" variant="primary">Left</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.bottom="'Tooltip!'" variant="primary">Bottom</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.topright="'Tooltip!'" variant="primary">Top right</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.topleft="'Tooltip!'" variant="primary">Top left</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.bottomright="'Tooltip!'" variant="primary">Bottom right</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.bottomleft="'Tooltip!'" variant="primary">Bottom left</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.lefttop="'Tooltip!'" variant="primary">Left top</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.leftbottom="'Tooltip!'" variant="primary">Left bottom</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.righttop="'Tooltip!'" variant="primary">Right top</b-button>
      </b-col>
      <b-col md="3" class="py-3">
        <b-button v-b-tooltip.hover.rightbottom="'Tooltip!'" variant="primary">Right bottom</b-button>
      </b-col>
    </b-row>
  </b-container>
</div>