Options must be a string and seperated by comma ( , ).
Ex: "name,email,city,country"

Name and value must be seperated by ( | ).
Ex: "name|value,email|value,city|value,country|value"

You can pass options as array!.
Ex: ['name','email','city','country'] Associative array does not support!

<x-select options="name|value,email|email,option|one,onlyname" />

output:
<select>
    <option value="value" >name</option>
    <option value="email" >email</option>
    <option value="one" >option</option>
    <option value="onlyname" >onlyname</option>
</select>

<x-select
    label="Select one!"
    help="This is help text!"
    options="name|value,email|email,option|one,onlyname"
    />