The HTML attribute "data" is often used in modern applications. The related name of the attribute is the combination of the fixed "data-" string and a individual name for that attribute. However the van tags properties requires strings for the property key. That's ok for the most attributes but is a limitation in dynamic DOM handling and querying. The "name" part of an data attribute should be allowed as a variable.
The HTML attribute "data" is often used in modern applications. The related name of the attribute is the combination of the fixed "data-" string and a individual name for that attribute. However the van tags properties requires strings for the property key. That's ok for the most attributes but is a limitation in dynamic DOM handling and querying. The "name" part of an data attribute should be allowed as a variable.