Open wangqiJava opened 1 month ago
// your answers <script setup lang="ts"> import { onMounted, onUnmounted, ref } from 'vue'; // Implement ... function useEventListener(target, event, callback) { onMounted(()=>target.addEventListener(event,callback)) onUnmounted(()=>target.removeEventListener(event,callback)) } // Implement ... function useMouse() { let x = ref(0) let y = ref(0) useEventListener(window, "mousemove", (e: MouseEvent) => { x.value = e.clientX y.value = e.clientY }) return {x,y} } const { x, y } = useMouse() </script> <template>Mouse position is at: {{ x }}, {{ y }}</template>