window.removeEventListener('feedbackShow') window.removeEventListener('feedbackHide') })
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...
-- use capture mode when adding the event listener --><!-- i.e. an event targeting an inner element is handled here before being handled by that element -->...<!-- only trigger handler if event.target is the element itself --><!-- i.e. not from a child element -->... 注:...
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'); } }); }); <...
}// 窗口尺寸发生更改时触发更新if(windowResize) {useEventListener('resize', update, {// 事件监听器不会调用 preventDefault() 方法来阻止默认行为。这样可以提高滚动的性能,并且减少滚动操作的延迟。passive:true, }) }// 窗口滚动时触发更新if(windowScroll) {useEventListener('scroll', update, {capture:...
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 ...
this.aspectRatioMedia.removeEventListener('change', this.aspectRatioUpdate) } } 现在的诉求,又有一个新组件我们需要复用 「主题色相关」内容,我们需要对其进行抽离。 在vue2 中,我们优先想到的是采用 mixins 方式 代码语言:txt 复制 /* perfersColorSchemeMixin.js */ ...
runtime-core.esm-bundler.js?5c40:38 [Vue warn]: Extraneous non-emits event listeners (delete) were passed to component but could not be automatically inherited because component renders fragment or text root nodes. If the listener is intended to be a component custom event listener only, decla...
window.removeEventListener("resize", echartsResize) }) return { initCharts, setOptions, echartsResize } } export { useEcharts } 然后再echart.vue中引入 <template> </template> import { shallowRef, onMounted, watch } from "vue" import { use...
exportfunctionon(element:Element|HTMLElement|Document|Window,event:string,handler:EventListenerOrEventListenerObject):void{if(element&&event&&handler){element.addEventListener(event,handler,false);}}exportfunctionoff(element:Element|HTMLElement|Document|Window,event:string,handler:Fn):void{if(element&&event&&...