twitterImage method
Definition of twitter:image
meta tag attribute
https://developer.twitter.com/en/docs/twitter-for-websites/cards/overview/markup
Add web mata data of twitterImage
attribute
Implement the interface
Implementation
@override
twitterImage(
{
/// Definition of [twitter:image] meta tag attribute
required String twitterImage}) {
/// Call the javascript function with needed attributes
js.context.callMethod('seoNameJS', ['twitter:image', twitterImage]);
}