element-plus cascader组件初试

2021-08-13 15:07:31 浏览数 (1)

很久很久之前,element-plus初识,慢慢找到当初使用Adobe Flex Builder写界面的感觉。

代码:

代码语言:javascript复制
<html>
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1.0" />
    <script src="https://unpkg.com/vue@next"></script>
    <!-- import CSS -->
    <link rel="stylesheet" href="https://unpkg.com/element-plus/lib/theme-chalk/index.css">
    <!-- import JavaScript -->
    <script src="https://unpkg.com/element-plus/lib/index.full.js"></script>
    <title>Element Plus demo</title>
  </head>
  <body>
    <div id="app">
      <div class="block">
        <span class="demonstration">单选选择任意一级选项</span>
        <el-cascader
          :options="options"
          :props="{ checkStrictly: true }"
          clearable></el-cascader>
      </div>
    </div>
    <script>
    var dist=[
      {value:0,label:'桂林',id:0,parentId:null},
      {value:1,label:'南宁',id:1,parentId:null},
      {value:2,label:'尧山',id:2,parentId:0}
    ];
    
    const getTreeMenu=(rootList, id, list)=> {
        for (let i = 0; i < rootList.length; i  ) {
            let item = rootList[i]
            if (String(item.parentId) == String(id)) {
                list.push(item);
            }
        }
        list.map(item => {
            item.children = []
            getTreeMenu(rootList, item.id, item.children)
            if (item.children.length == 0) {
                delete item.children;
            }
        })
        return list;
    }

    var arr=[];
    getTreeMenu(dist,null,arr);
    console.log(arr);

      const App = {
        data() {
          const state = Vue.reactive({options: arr});
          return {
            ...state,
          };
        },
      };
      const app = Vue.createApp(App);
      app.use(ElementPlus);
      app.mount("#app");
</script>
  </body>
</html>

运行之,成功。

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