js 保存当前页面数据类型

// 保存字符串
localStorage.setItem('myKey', 'Hello, World!');

// 读取字符串
const myString = localStorage.getItem('myKey');
console.log(myString); // 输出: Hello, World!

// 保存数字
localStorage.setItem('myNumber', '123');

// 读取并转换为数字
const myNumber = parseInt(localStorage.getItem('myNumber'), 10);
console.log(myNumber); // 输出: 123

// 保存布尔值
localStorage.setItem('myBoolean', 'true');

// 读取并转换为布尔值
const myBoolean = localStorage.getItem('myBoolean') === 'true';
console.log(myBoolean); // 输出: true

// 保存对象
const myObject = { name: 'Alice', age: 25 };
localStorage.setItem('myObject', JSON.stringify(myObject));

// 读取并解析对象
const storedObject = JSON.parse(localStorage.getItem('myObject'));
console.log(storedObject); // 输出: { name: 'Alice', age: 25 }

// 保存数组
const myArray = [1, 2, 3, 4, 5];
localStorage.setItem('myArray', JSON.stringify(myArray));

// 读取并解析数组
const storedArray = JSON.parse(localStorage.getItem('myArray'));
console.log(storedArray); // 输出: [1, 2, 3, 4, 5]

// 保存日期
const myDate = new Date();
localStorage.setItem('myDate', myDate.toISOString());

// 读取并解析日期
const storedDate = new Date(localStorage.getItem('myDate'));
console.log(storedDate); // 输出: 当前日期和时间