doc:fix method handler access the DOM element way

[coderZoe]

Description of Problem

The documentation mentions that method handler can access the DOM element through event.target.tagName. However, I think that event.target.tagName actually retrieves the tag name of the DOM element, not the DOM element itself. To access the DOM element directly, one should use event.target.

Proposed Solution

I suggest updating the documentation to replace event.target.tagName with event.target.

Additional Information

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