isSelected

Will return true or false whether or not an <option> or <input> element of type checkbox or radio is currently selected.

Usage#
$(selector).isSelected()
Examples#
index.html
<select name="selectbox" id="selectbox">
<option value="John Doe">John Doe</option>
<option value="Layla Terry" selected="selected">Layla Terry</option>
<option value="Bill Gilbert">Bill Gilbert"</option>
</select>
isSelected.js
it('should detect if an element is selected', () => {
let element = $('[value="Layla Terry"]');
console.log(element.isSelected()); // outputs: true
element = $('[value="Bill Gilbert"]')
console.log(element.isSelected()); // outputs: false
});