@tof06
tnx
i write it bad here but in my code it is fine and has no typo error

Hi
I made a quasar app with quasar-cli and i want to use Zingchart in it
so i install it and import in to my components and used it like:

<zingchart :data="barChart" ref="barChart" />

the problem is wen i want to call zingchart functions with $ref i got an Error:

TypeError: this.$refs.barChart.modify is not a function

PS: i test my code without quasar (vue-cli app) and it works fine
can any one please help me?