Today, I asked for leave to get vaccinated. When I got home, my colleague sent me a problem saying that the elementUI checkbox was unclickable. I thought it was the data, so I tried it on my computer. Find assign to checkedCities; String, number. You can check either of them, but you can’t check the elementUI checkbox when you look online.

situation

Cause of occurrence

  • CheckedCities Defaults to []
  • The min value is greater than or equal to 2

Unselected renderings are displayed

Open the image in a new window to see the full effect.

Code for problem recurrence

When the following code is opened in a browser, the checkbox is not selected

<! DOCTYPEhtml>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="Width = device - width, initial - scale = 1.0">
    <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
    <title>The test Element</title>
</head>

<body>
    <div id="app">
        <el-checkbox-group v-model="checkedCities" :min="2">
            <el-checkbox label="1" name="type">food</el-checkbox>
            <el-checkbox label="2" name="type">To push the activity</el-checkbox>
            <el-checkbox label="3" name="type">Offline themed activities</el-checkbox>
        </el-checkbox-group>
    </div>
</body>
<! -- import Vue before Element -->
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<! -- import JavaScript -->
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
<! -- -->
<script>
    new Vue({
        el: '#app'.data: function () {
            return { 
                checkedCities: [].}}})</script>
</html>
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