blank option in select drop down

Webix JS
#1

hi,
how to provide a blank option in the select drop down list for the user to select.

#2

Such option can be set to the richselect and combo with the$empty flag:

https://webix.com/snippet/459ff670

Behavior of ui.select is similar to the regular HTML select input, so the options have to be modified before init, or

select.config.options.unshift({id:"", value:""});
select.refresh();