1.添加事件监听:Event Listener import { ref, onMounted, onUnmounted } from'vue'const content=ref() const bottom= ref(false) const doScroll= (event) =>{ const scrollHeight=event.target.scrollHeight const scrollTop=event.target.scrollTop const clientHeight=event.target.clientHeightif(scrollTop + c...
window.removeEventListener('feedbackShow') window.removeEventListener('feedbackHide') })
error('hover is null or undefined'); } }); useEventListener(mainCover, 'click', () => { if (mainCover.value) { mainCover.value.classList.toggle('active'); mainCover.value.classList.toggle('inactive'); } else { console.error('mainCover is null or undefined'); } }); }); <...
el.removeEventListener('click', => {});// 移除 document.body.removeChild(previewBox); }, }); render(vnode, previewBox);// 将 vnode 渲染成 html document.body.(previewBox);// 将 html 插入到 body 标签里面 }, }); } 将文件导入到 main.ts中 将文件导入 main.ts中然后调用我们导入的方法...
console.log('Window resized'); }; window.addEventListener('resize', handleResize); onUnmounted(() => { window.removeEventListener('resize', handleResize); }); }); ``` 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15....
window.removeEventListener('scroll', handleScroll); } }); 这样,在每个组件销毁之前,都会自动移除对应的事件监听器。这种做法非常方便且可行,无需在每个组件中手动添加相同的移除代码。 需要注意的是,我们在`beforeUnmount`钩子函数中使用的是`window.removeEventListener`,与之前添加监听器时的`window.addEventListene...
element.addEventListener('click', handleClick); }); onUnmounted(() => { const element = document.getElementById('my-element'); element.removeEventListener('click', handleClick); }); function handleClick(event) { console.log('Element clicked:', event); } return {}; }, };©...
el)return// 绑定事件el如果没有传入就绑定为windowel.addEventListener(event,listener,options)// 重写函数方便改变的时候卸载cleanup=()=>{el.removeEventListener(event,listener,options)cleanup=noop}},//flush: 'post' 模板引用侦听{immediate:true,flush:'post'},)// 卸载conststop=()=>{stopWatch()...
{document.addEventListener('fullscreenchange', handleFullscreenChange);document.addEventListener('webkitfullscreenchange', handleFullscreenChange);});onUnmounted(() => {document.removeEventListener('fullscreenchange', handleFullscreenChange);document.removeEventListener('webkitfullscreenchange', handleFull...
cardRef.value?.removeEventListener('mousemove', onMouseMove); cardRef.value?.removeEventListener('mouseleave', onMouseLeave); }); return { cardRef, }; }; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16.