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This time I will bring you vue.JS to make a shopping cart and address selection. What are the precautions for making a shopping cart and address selection with vue.JS? The following is a practical case. Get up and take a look.
First of all, vue basic js writing method
new Vue({ el:"#app", //模型 data:{ }, filters:{ }, mounted:function(){ this.$nextTick(function(){ //初始化调用 }); }, computed:{ //实时计算 }, methods:{ } });
v-for
<li v-for="(item,index) in productList"> <p class="item-name">{{item.productName}}</p> </li>
v-model
(real-time update)<input type="text" value="0" disabled v-model="item.productQuantity"> <p class="item-price-total">{{item.productQuantity}}</p>
v-bind
<a href="javascript:;" class="item-check-btn" v-bind:class="{'check':item.checked}"> <!--可通过更改item.checked的值设置是否选中--> <!--必须用v-bind 不可直接在class里面直接使用{{}}--> <!--v-bind:class= 可简写为 :class= -->
filtersFilter Use of #1.html reference method
<p class="item-price">{{item.productPrice | money('元')}}</p>2.Filter
filters:{ formatMoney:function(value,type){ return "¥"+value.toFixed(2)+ type; } },3. Global filter (written outside new Vue)
Vue.filter("money",function(value,type){ return "¥"+value.toFixed(2) + type; //保留两位小数 结果eg:¥19.00元 });Call the method in methods:
@click="method(param)" //或者 @click="delFlag=false" @click="limitNum=addressList.length"computed real-time The calculation
is as follows: three pieces of data are displayed by default, click more to display all
<li v-for="(item,index) in filterAddress"> <p class="shipping-addr-more"> <a class="addr-more-btn up-down-btn" href="javascript:" @click="limitNum=addressList.length"> more <i class="i-up-down"> <i class="i-up-down-l"></i> <i class="i-up-down-r"></i> </i> </a> </p> data:{ limitNum:3 }, computed:{ filterAddress:function(){ return this.addressList.slice(0,this.limitNum); } },First put forward one or two classic examples1. The following is implemented Click to select the loop card
<li v-for="(item,index) in filterAddress" v-bind:class="{'check':index==currentIndex}" @click="currentIndex=index"> <!--其中currentIndex在js里需要定义-->2. The following implements the click to select the fixed card
<ul> <li v-bind:class="{'check':shippingMethod==1}" @click="shippingMethod=1"> <p class="name">标准配送</p> <p class="price">Free</p> </li > <li v-bind:class="{'check':shippingMethod==2}" @click="shippingMethod=2"> <p class="name">高级配送</p> <p class="price">180</p> </li> </ul> <!--其中shippingMethod在js里需要定义-->Digression: Since I am a novice, I will learn a little bit, and I will record the auxiliary pop-up box. How to write the mask layer
<p class="md-overlay" v-if="delFlag"></p>vue2’s js syntax is posted for easy reference
1. Call the backend method
var _this = this; this.$http.get("data/address.json").then(function(response){ _this.addressList = response; //这里不能直接用this 此this非彼this 所以只能声明_this }); //以下为ES6写法,就可以直接用this了 let _this = this; //没用,就放这看看~ this.$http.get("data/cartData.json",{"id":123}).then(res=>{ this.productList = res.data.result.list; });2.forEach
Loopthis.productList.forEach(function(item,index){
if(typeof item.checked == 'undefined'){
//如果item中没有checked属性 在item对象中添加checked属性,值为true
_this.$set(item,"checked",true);//局部注册
Vue.set(item,"checked",true);//全局注册
}
});
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to php Chinese Other related articles online!
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