[Solved] "TypeError: this.$refs.newref.validate is not a function"

[abdulakhad]

<q-select
        v-for="(items, key) in attributeNameValues"
        :key="key"
        class="col-12 q-mt-md"
        square
        dense
        ref="newref"
        outlined
        v-model="selected[key]"
        @input="updateSlide"
        :prefix="key + ' :'"
        :options="attributeNameValues[key]"
        :rules="[val => val != undefined || $t('required')]"
        lazy-rules="ondemand"
       />

this.$refs.newref.validate();

what could be the cause of this error

[abdulakhad]

for (var v = 0; v < this.$refs.newref.length; v++){
this.$refs.newref[v].validate();
}
I found the answer