如何在amp-autocomplete选中选项时输入框显示h1值且正常跳转对应url

你之前拼接字符串再拆分的方案无法生效，是因为AMP的事件表达式有安全限制，不支持直接调用split这类原生JS方法，你可以通过amp-autocomplete select事件自带的event.item字段实现需求，不需要额外处理字符串：

核心原理 #

amp-autocomplete触发select事件时，返回的事件对象包含两个常用字段：

• event.value：对应模板中data-value属性的值，默认会自动填充到关联的输入框中
• event.item：你在配置JSON中定义的选中条目完整对象，可直接访问h1、url等所有自定义字段

修改步骤 #

1. 将mustache模板中的data-value属性设置为{{h1}}，保证选中选项后输入框自动填充标题内容
2. 将跳转逻辑的取值从event.value改为event.item.url，直接从完整条目对象中读取跳转地址

关键代码修改片段 #

<!-- 修改后的模板部分 -->
<template type="amp-mustache" id="amp-template-custom">
  <div class="slug-item" data-value="{{h1}}">
    <span class="autocomplete-link">{{h1}}</span>
  </div>
</template>

<!-- 修改后的autocomplete事件配置 -->
<amp-autocomplete filter="token-prefix" filter-value="h1" min-characters="2" on="select:AMP.navigateTo(url=event.item.url, target=_blank)">
  <input type="search" name="h1" />
  <!-- 其余配置不变 -->
</amp-autocomplete>

完整可运行代码 #

<!DOCTYPE html>
<html ⚡>
  <head>
    <meta charset="utf-8" />
    <link rel="canonical" href="self.html" />
    <meta name="viewport" content="width=device-width,minimum-scale=1" />
    <style amp-boilerplate>
      body {
        -webkit-animation: -amp-start 8s steps(1, end) 0s 1 normal both;
        -moz-animation: -amp-start 8s steps(1, end) 0s 1 normal both;
        -ms-animation: -amp-start 8s steps(1, end) 0s 1 normal both;
        animation: -amp-start 8s steps(1, end) 0s 1 normal both;
      }
      @-webkit-keyframes -amp-start {
        from {
          visibility: hidden;
        }
        to {
          visibility: visible;
        }
      }
      @-moz-keyframes -amp-start {
        from {
          visibility: hidden;
        }
        to {
          visibility: visible;
        }
      }
      @-ms-keyframes -amp-start {
        from {
          visibility: hidden;
        }
        to {
          visibility: visible;
        }
      }
      @-o-keyframes -amp-start {
        from {
          visibility: hidden;
        }
        to {
          visibility: visible;
        }
      }
      @keyframes -amp-start {
        from {
          visibility: hidden;
        }
        to {
          visibility: visible;
        }
      }
    </style>
    <noscript
      ><style amp-boilerplate>
        body {
          -webkit-animation: none;
          -moz-animation: none;
          -ms-animation: none;
          animation: none;
        }
      </style></noscript
    >
    <script async src="https://cdn.ampproject.org/v0.js"></script>
    <script async custom-element="amp-form" src="https://cdn.ampproject.org/v0/amp-form-0.1.js"></script>
    <script async custom-element="amp-autocomplete" src="https://cdn.ampproject.org/v0/amp-autocomplete-0.1.js"></script>
    <script async custom-template="amp-mustache" src="https://cdn.ampproject.org/v0/amp-mustache-0.2.js"></script>
  </head>
  <body>
    <form class="sample-form" method="post" target="_top" action-xhr="https://amp.dev/documentation/examples/api/echo">
      <label>
        <span>Search for</span>
        <amp-autocomplete filter="token-prefix" filter-value="h1" min-characters="2" on="select:AMP.navigateTo(url=event.item.url, target=_blank)">
          <input type="search" name="h1" />
          <script type="application/json">
            {
              "items": [
                {
                  "h1": "page1",
                  "url": "https://stackoverflow.com/"
                },
                {
                  "h1": "page2",
                  "url": "https://google.com/"
                },
                {
                  "h1": "page3",
                  "url": "https://amp.dev/"
                }
              ]
            }
          </script>
          <template type="amp-mustache" id="amp-template-custom">
            <div class="slug-item" data-value="{{h1}}">
              <span class="autocomplete-link">{{h1}}</span>
            </div>
          </template>
        </amp-autocomplete>
      </label>
    </form>
  </body>
</html>

内容的提问来源于stack exchange，提问作者la_petite_kozel