vue自定义toast组件

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const  TOAST_CLASS = 'toast'
const  TOAST_OUT_CLASS = 'toast out'
let innerHtml=""
function  toast(msg,time=1000) {
    let body=document.querySelector('#app');
    if(body.querySelector('.toast')){
        body.removeChild(body.querySelector('.toast'))
    }
    let toastElem = document.createElement('div')
    toastElem.setAttribute('class',TOAST_CLASS)
    innerHtml = `<sapn>${msg}</sapn>`
    toastElem.innerHTML = innerHtml;
    body.appendChild(toastElem);
    setTimeout(function () {
        toastElem.setAttribute('class',TOAST_OUT_CLASS)
    },time)
    setTimeout(function () {
        let elm = body.querySelector('.toast');
        if(elm){
            body.removeChild(elm)
        }
    },time+1000)

}
export  default toast

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@-webkit-keyframes toastIn {
  0%{
    opacity: 1;
  }
  50%{
    opacity: 1;
  }
  100%{
    opacity: 1;
  }
}
@-webkit-keyframes toastOut {
  0%{
    opacity:1;
  }
  50%{
    opacity:0.7;
  }
  100%{
    opacity:0;
  }
}
//animation: name duration timing-function delay iteration-count direction;
.toast{
  position: fixed;
  z-index:99;
  background-color: rgba(0,0,0,0.6);
  color:#fff;
  padding:15px 25px;
  border-radius:5px;
  top: 50%;
  left:50%;
  font-size:18px;
  transform: translate(-50% , -50%);
  animation-name: toastIn;
  animation-duration: 1s;
  animation-iteration-count: 1;
  animation-delay: 0s;
}

.toast.out {
  animation-name: toastOut;
  animation-duration: 1s;
  animation-iteration-count: 1;
  animation-delay: 0s;
  animation-fill-mode: forwards;
}

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import toast from "./utils/toast";

window._toast = toast