Question

person是Person类的对象，我需要在person中存储localstorage对象并使用其类型检索它。请帮忙.. 我正在使用TypeScript处理AngularJS项目。

Answer 1

window.localStorage只能store字符串。您可以使用JSON序列化对象并将其检索回来。

class Person {

    constructor(public name:string) {

    }
}

let person = new Person('Peter');
localStorage.setItem('person', JSON.stringify(person));
let personFromStorage = JSON.parse(localStorage.getItem('person')) as Person;

console.log({
    person: person,
    personFromStorage: personFromStorage
});

Answer 2

尽管马丁的答案适用于没有方法的类。对于具有方法的类，您可以尝试以下方法：

let personFromStorage = JSON.parse(localStorage.getItem('person')) as Person;

let person = new Person('');
Object.assign(person , personFromStorage);

存储和获取对象而不破坏localstorage

2 个答案: