ChatGpt front-end code realizes "click color change function"

Effect - Click the button to change color

Effects - add transition effects

The complete code is as follows

<!DOCTYPE html>
<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">
    <title>Document</title>
</head>
<style>
    div{
        /* 过渡效果 */
        transition:.5s;
        overflow: hidden;
    }
    .div1{
        width: 100px;
        height: 10px;
        background-color: pink;
    }
    .div2{
        width: 100px;
        height: 100px;
        background-color: #f05922;
    }
</style>
<body>
    <button onclick="change()">点击变色</button>
    <div id="aaa" class="div1" index="1">
        <p>买买买</p>
        <p>去结账</p>
    </div>
</body>
<script>
    var div = document.querySelector('div')
    // getAttribute
    // console.log(div.getAttribute('id'));
    // console.log(div.getAttribute('class'));
    // console.log(div.getAttribute('index'));

    // setAttribute
    // div.setAttribute('id','bbb');
    // div.setAttribute('class','div2');
    // div.setAttribute('index','2');

    console.log(div.getAttribute('id'));
    console.log(div.getAttribute('class'));
    console.log(div.getAttribute('index'));

    function change(){
        if(div.getAttribute('class') == 'div1'){
            div.setAttribute('class','div2');
        }else{
            div.setAttribute('class','div1');
        }
    }

</script>
</html>

Parsing: Two operational attributes are used

1. getAttribute to get attributes

<style>
    .div1{
        width: 100px;
        height: 100px;
        background-color: pink;
    }
</style>
<body>
    <div id="app" class="div1" index="1" ></div>
</body>
<script>
    var div = document.querySelector('div')
    console.log(div.getAttribute('id'));
    console.log(div.getAttribute('class'));
    console.log(div.getAttribute('index'));
</script>

2. setAttribute to modify attributes

    .div1{
        width: 100px;
        height: 100px;
        background-color: pink;
    }
    .div2{
        width: 100px;
        height: 100px;
        background-color: #dd5c25;
    }
</style>
<body>
    <div id="app" class="div1" index="1" ></div>
</body>
<script>
    var div = document.querySelector('div')

    div.setAttribute('id','bbb')
    div.setAttribute('class','div2')
    div.setAttribute('index','2')

    console.log(div.getAttribute('id'));
    console.log(div.getAttribute('class'));
    console.log(div.getAttribute('index'));
</script>

ChatGpt front-end code realizes "click color change function"

Effect - Click the button to change color

Effects - add transition effects

Parsing: Two operational attributes are used

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