[рони]

fori,

<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<input id="vue" type="text" v-model="variable" v-my>
<script>
    Vue.directive('my', {
    bind:function (el) {
        el.addEventListener('input', event => {
        alert(el.value);
        }, true);
    }

    });
    var vue = new Vue({
        el: '#vue',
        data: {
            variable: "",
        }
})
</script>