Javascript 从获取的数据中绑定数据组件
如何将获取的响应中的数据绑定到组件 我的目标是检查用户当前的deliveryProvider(从firestore获取)是否与给定的提供商名称匹配Javascript 从获取的数据中绑定数据组件,javascript,alpine.js,Javascript,Alpine.js,如何将获取的响应中的数据绑定到组件 我的目标是检查用户当前的deliveryProvider(从firestore获取)是否与给定的提供商名称匹配 <template x-for="(provider, index) in Object.values(deliveryProviders.providers)" :key="provider"> <div> <label> <div class
<template x-for="(provider, index) in Object.values(deliveryProviders.providers)" :key="provider">
<div>
<label>
<div class="relative flex justify-between border border-b-0 border-gray-200 p-3 md:pl-4 md:pr-6"
:class="{
'rounded-tl-md rounded-tr-md' : index === 0,
'rounded-bl-md rounded-br-md border-b': (Object.values(deliveryProviders.providers).length == index+1)}">
<div class="text-sm flex cursor-pointer">
<input name="deliveryProviders" type="checkbox" :value="provider.name"
class="focus:ring-indigo-500 h-4 w-4 text-indigo-600 border-gray-300 rounded"
:checked="user.deliveryProvider.includes(provider.name)">
<div class="ml-3">
<div class="font-medium text-gray-900" x-text="provider.name"></div>
<div class="text-sm block text-gray-500" x-text="provider.description">
</div>
</div>
</div>
</div>
</label>
</div>
这种方法会导致无法使用代码段读取未定义的的属性“includes”
您的脚本正在尝试加载,而deliveryProviders
未定义。别这样
<div x-if="deliveryProviders !== undefined">
<template x-for="(provider, index) in Object.values(deliveryProviders.providers)" :key="provider">
<div>
<label>
<div class="relative flex justify-between border border-b-0 border-gray-200 p-3 md:pl-4 md:pr-6"
:class="{
'rounded-tl-md rounded-tr-md' : index === 0,
'rounded-bl-md rounded-br-md border-b': (Object.values(deliveryProviders.providers).length == index+1)}">
<div class="text-sm flex cursor-pointer">
<input name="deliveryProviders" type="checkbox" :value="provider.name"
class="focus:ring-indigo-500 h-4 w-4 text-indigo-600 border-gray-300 rounded"
:checked="user.deliveryProvider.includes(provider.name)">
<div class="ml-3">
<div class="font-medium text-gray-900" x-text="provider.name"></div>
<div class="text-sm block text-gray-500" x-text="provider.description">
</div>
</div>
</div>
</div>
</label>
</div>
</template>
</div>
解释的解决方案
上面的代码段通过fetch接口使用AJAX从服务器请求数据。唯一的问题是没有任何东西告诉AlpineJS脚本等待数据填充。放置x-if
逻辑将跳过有问题的代码,直到加载了它所依赖的变量