There is no is attribute in HTML. It is a proposed extension that appears in the Custom Elements specification (which evolved from the ... ... <看更多>
Search
Search
There is no is attribute in HTML. It is a proposed extension that appears in the Custom Elements specification (which evolved from the ... ... <看更多>
... <看更多>
Understanding Relationships Between HTML Attributes & DOM Object's Properties. If this JavaScript tutorial saves you hours of work, please whitelist it in your ... ... <看更多>