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mobx_todo_store_with_makeAutoObservable_and_autorun_logging.ts

typescript

A basic Todo store using makeAutoObservable to track state changes and automaticall

19d ago28 linesmobx.js.org
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mobx_todo_store_with_makeAutoObservable_and_autorun_logging.ts
1import { makeAutoObservable, autorun } from "mobx";
2
3class TodoStore {
4    todos: string[] = [];
5
6    constructor() {
7        makeAutoObservable(this);
8    }
9
10    addTodo(task: string) {
11        this.todos.push(task);
12    }
13
14    get todoCount() {
15        return this.todos.length;
16    }
17}
18
19const store = new TodoStore();
20
21// A derivation that automatically prints the status whenever the state changes
22autorun(() => {
23    console.log(`Tasks: ${store.todos.join(", ")} (Count: ${store.todoCount})`);
24});
25
26// Actions that trigger the updates
27store.addTodo("Learn MobX");
28store.addTodo("Build a cool app");