<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>todos</title>
<script src="https://cdn.bootcss.com/vue/2.4.2/vue.js"></script>
<style>
.wrap{
width: 400px;
background-color: #ccc;
margin: 0 auto;
}
i{
color: #f00;
font-size: 12px;
margin-left: 20px;
cursor: pointer;
}
i:hover{
font-weight: 700;
}
ol{
/*white-space: nowrap;*/
word-wrap:break-word;
}
.done{
text-decoration: line-through;
}
.not{
}
</style>
</head>
<body>
<div class="wrap" id="todos">
<input type="text" v-model='nextItem' @keyup.enter='append'>
<button id="append" @click='append'>添加</button>
<ol>
<li v-for='(item,index) of comp'
:key=item.id
:class='item.state ? "not" : "done"'>
{{item.text}}
<i @click='remove(index)'>完成</i>
</li>
</ol>
<button @click='all'>全部</button>
<button @click='done'>已完成</button>
<button @click='todos'>待完成</button>
</div>
</body>
<script>
var todos = new Vue({
el:'#todos',
data:{
nextItem: '',
nextID: 1,
list: [],
type: null,
},
computed:{
comp:function(){
if( this.type === 0 ){
return this.list;
}
else if(this.type === 1){ //show all
return this.list.filter(function(item){
return true;
})
}
else if(this.type === 2){ //done
return this.list.filter(function(item){
return item.state ? false : true;
})
}
else if(this.type === 3){ //todos
return this.list.filter(function(item){
return item.state ? true : false;
})
}
}
},
methods:{
append:function(){//添加到todo
this.list.push({
id:this.nextID++,
text:this.nextItem,
state: true,
});
this.nextItem = '';
this.type = 0;
},
remove:function(index){ //添加到donelist
this.list[index].state = !this.list[index].state;
},
all:function(){
this.type = 1;
},
done:function(){
this.type = 2;
},
todos:function(){
this.type = 3;
}
}
});
</script>
</html>
