Quasar multi select menu with checkboxes

Solution 1:

the stringOptions property is not declared to be used in the setup code, it's only declared to be returned to the view, so you need to add this line in the beggining of your setup method : const stringOptions=[ 'Google', 'Facebook', 'Twitter', 'Apple', 'Oracle' ] and in the return refrence directly the property stringOptions

here is a link to a working codepen example https://codepen.io/HoussemDbira/pen/zYEgVmb