ext: Neighbor Element Capture

ext is used to try to get an image from nearby nodes when the mouse hovers over a non-image element.

Supported Built-in Values

• previous: Previous sibling node.
• previous-2: Previous two sibling nodes.
• next: Next sibling node.

Example

ext: 'previous-2'

Function Form

ext: function (target) {
  if (target && target.previousElementSibling) {
    return target.previousElementSibling.querySelector('img')
  }
}

Suggestions

When the page structure is stable, ext can quickly solve the image retrieval need when "hovering over a button or text".