vue中倒計時元件
子元件：
<template>
<span :endTime="endTime" :callback="callback" :endText="endText">
<slot>
{{content}}
</slot>
</span>
</template>
<script>
export default {
data(){
return {
content: '',
}
},
props:{
endTime:{
type: String,
default :''
},
endText:{
type : String,
default:'已結束'
},
callback : {
type : Function,
default :''
}
},
mounted () {
this.countdowm(this.endTime)
},
methods: {
countdowm(timestamp){
let self = this;
let timer = setInterval(function(){
let nowTime = new Date();
let endTime = new Date(timestamp * 1000);
let t = endTime.getTime() - nowTime.getTime();
if(t>0){
let day = Math.floor(t/86400000);
let hour=Math.floor((t/3600000)%24);
let min=Math.floor((t/60000)%60);
let sec=Math.floor((t/1000)%60);
hour = hour < 10 ? "0" + hour : hour;
min = min < 10 ? "0" + min : min;
sec = sec < 10 ? "0" + sec : sec;
let format = '';
if(day > 0){
format = `${day}天${hour}小時${min}分${sec}秒`;
}
if(day <= 0 && hour > 0 ){
format = `${hour}小時${min}分${sec}秒`;
}
if(day <= 0 && hour <= 0){
format =`${min}分${sec}秒`;
}
self.content = format;
}else{
clearInterval(timer);
self.content = self.endText;
self._callback();
}
},1000);
},
_callback(){
if(this.callback && this.callback instanceof Function){
this.callback(...this);
}
}
}
}
</script>
父元件：
<count-down endTime="1590761620" :callback="callback" endText="已經結束了"></count-down>
callback:function(){
}
}