Compare NgRx, Akita, Elf, and Signals-based state management.
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What are the differences between State Management libraries in Angular?
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Understand the problem
state-managementarchitecture
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Read the code
A clean, modern state store using Signals
import { Injectable, signal, computed } from '@angular/core';
export interface Todo { id: number; text: string; done: boolean; }
@Injectable({ providedIn: 'root' })
export class TodoStore {
private state = signal<{ todos: Todo[]; filter: string }>({
todos: [],
filter: 'all'
});
todos = computed(() => this.state().todos);
activeTodos = computed(() => this.state().todos.filter(t => !t.done));
addTodo(text: string) {
this.state.update(curr => ({
...curr,
todos: [...curr.todos, { id: Date.now(), text, done: false }]
}));
}
}05
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