Vue-41、浏览器本地存储

1、local storage

javascript 复制代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>localStorage</title>
</head>
<body>
    <h1>localStorage</h1>
    <button onclick="saveData()">点我保存一个数据</button>
    <button onclick="readData()">点我读取一个数据</button>
    <button onclick="deleteData()">点我删除一个数据</button>
    <button onclick="deleteAllData()">点我清空所有数据</button>
<script type="text/javascript">
    let person = {name:'张仨',age:18};
    function saveData() {
        localStorage.setItem('msg','hello');
        localStorage.setItem('msg2',666);
        localStorage.setItem('person',JSON.stringify(person));
    }
    function readData() {
        console.log(localStorage.getItem('msg'));
        console.log(localStorage.getItem('msg2'));
        const result = localStorage.getItem('person');
        console.log(JSON.parse(result));
    }
    function deleteData() {
        localStorage.removeItem('msg');
        localStorage.removeItem('msg2');
        localStorage.removeItem('person');
    }
    function deleteAllData() {
        localStorage.clear();
    }
</script>
</body>
</html>

2、session storage

javascript 复制代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>sessionStorage</title>
</head>
<body>
<h1>localStorage</h1>
<button onclick="saveData()">点我保存一个数据</button>
<button onclick="readData()">点我读取一个数据</button>
<button onclick="deleteData()">点我删除一个数据</button>
<button onclick="deleteAllData()">点我清空所有数据</button>
<script type="text/javascript">
    let person = {name:'张仨',age:18};
    function saveData() {
        sessionStorage.setItem('msg','hello');
        sessionStorage.setItem('msg2',666);
        sessionStorage.setItem('person',JSON.stringify(person));
    }
    function readData() {
        console.log(sessionStorage.getItem('msg'));
        console.log(sessionStorage.getItem('msg2'));
        const result = sessionStorage.getItem('person');
        console.log(JSON.parse(result));
    }
    function deleteData() {
        sessionStorage.removeItem('msg');
        sessionStorage.removeItem('msg2');
        sessionStorage.removeItem('person');
    }
    function deleteAllData() {
        localStorage.clear();
    }
</script>
</body>
</html>

3、总结