<div id="app">
<div class="container">
<my-cart></my-cart>
</div>
</div>
<script type="text/javascript" src="js/vue.js"></script>
<script type="text/javascript">
var cartTitle = {
props: ['uname'],
template: `<div class="title">{{uname}}的商品</div>`
}
var cartList = {
props: ['sss'],
template: ` <div>
<div class="item" :key='item.id' v-for='item in sss'>
<img :src="item.img" />
<div class="name"></div>
<div class="change">
<a href="" @click.prevent='sub(item.id)'>-</a>
<input type="text" class="num" :value='item.num' @blur=changeNumm(item.id,$event) />
<a href="" @click.prevent='add(item.id)'>+</a>
</div>
<div class="del" @click='del(item.id)'>×</div>
</div>
</div>`,
methods: {
changeNumm(id, event) {
if (event.target.value < 1) {
event.target.value = 1
}
this.$emit('changeNum', {
id: id,
type: 'change',
num: event.target.value
})
},
sub: function(id) {
this.$emit('changeNum', {
id: id,
type: 'sub'
});
},
add: function(id) {
this.$emit('changeNum', {
id: id,
type: 'add'
});
},
del(id) {
this.$emit('delete', id)
}
}
}
var cartTotal = {
props: ['ttt'],
template: `<div class="total">
<span>总价:{{total}}</span>
<button>结算</button>
</div>`,
computed: {
total: function() {
var t = 0
this.ttt.forEach(item => {
t += item.price * item.num
})
return t
}
},
}
Vue.component('my-cart', {
data: function() {
return {
uname: '张三',
list: [{
id: 1,
name: 'TCL彩电',
price: 1000,
num: 1,
img: 'img/a.jpg'
}, {
id: 2,
name: '机顶盒',
price: 1000,
num: 1,
img: 'img/b.jpg'
}, {
id: 3,
name: '海尔冰箱',
price: 1000,
num: 1,
img: 'img/c.jpg'
}, {
id: 4,
name: '小米手机',
price: 1000,
num: 1,
img: 'img/d.jpg'
}, {
id: 5,
name: 'PPTV电视',
price: 1000,
num: 2,
img: 'img/e.jpg'
}]
}
},
template: ` <div class="cart">
<cart-title :uname='uname'></cart-title>
<cart-list :sss='list' @delete='deleteCart' @changeNum='changeNNN($event)'></cart-list>
<cart-total :ttt='list'></cart-total>
</div>`,
components: {
'cart-title': cartTitle,
'cart-list': cartList,
'cart-total': cartTotal
},
methods: {
deleteCart(id) {
var index = this.list.findIndex(item => {
return item.id == id;
});
// 2、根据索引删除对应数据
this.list.splice(index, 1);
},
changeNNN(val) {
// 分为三种情况:输入域变更、加号变更、减号变更
if (val.type == 'change') {
// 根据子组件传递过来的数据,跟新list中对应的数据
this.list.some(item => {
if (item.id == val.id) {
item.num = val.num;
// 终止遍历
return true;
}
});
} else if (val.type == 'sub') {
// 减一操作
this.list.some(item => {
if (item.id == val.id) {
if (item.num > 1) {
item.num -= 1;
}
// 终止遍历
return true;
}
});
} else if (val.type == 'add') {
// 加一操作
this.list.some(item => {
if (item.id == val.id) {
item.num += 1;
// 终止遍历
return true;
}
});
}
}
}
})
var vm = new Vue({
el: '#app',
data: {
}
});
</script>
自己手敲的VUE组件化购物车案例 纪念一下
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转载自blog.csdn.net/qq_39349116/article/details/108125114
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