what is data attribute in html

The preserve_all calling convention attempts to make the code in the caller even less intrusive than the preserve_most calling convention. If the image is available and the user agent is configured to display that image, then the element represents the element's image data. 1.11.1 Presentational markup; 1.11.2 Syntax errors; 1.11.3 Restrictions on content models and on attribute values The tag defines a hyperlink, which is used to link from one page to another.. If you have a single page that's accessible by multiple URLs, or different pages with similar content (for example, a page with both a mobile and a desktop version), Google sees these as duplicate versions of the same page. The value of the id attribute must be unique within the HTML document. Definition and Usage. The title attribute specifies extra information about an element. Data Structures & Algorithms- Self Paced Course. However, it is not necessarily useful). The tricky bit is that this data store gets its initial values from the data attribute on the DOM node. Note: The size attribute works with the following input types: text, search, tel, url, email, and password. Definition and Usage. Save the script file with a .js extension, and then refer to it using the src attribute in the