Attributes.get()
The Attributes.get() method will return the value of attribute stored under
key, or false if it's not set.
Signature
string attributes.get(string key)
If key has mul提示le values, they will be joined together in a string, separated by spaces.
Example
const attr = new Attributes()
.add('class', 'classA')
.add('class', 'classB')
const class = attr.get('class')
// class now holds: "classA classB"