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JS variable plus

2022-07-07 04:50:00 【Big bug of xiaofeichan】

1. Update variables

2. Declare multiple variables

<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title></title>
    <script>
        //1. Update variables 
        var myname = ' full name 1';
        console.log(myname);
        myname = ' full name 2';
        console.log(myname);
        //2. Declare multiple variables 
        var name = ' Sheep and sheep ',
        age = 18,
            temperamental = ' Silly autumn ';
        console.log(name);
        console.log(age);
        console.log(temperamental);
    </script>
</head>
<body>

</body>
</html>

3. Only declare （var） No assignment