What is Angular State Management and how to implement it?

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Angular State Management refers to handling the state of your application in a way that makes it easy to manage data across components and services. You can implement it using libraries like NgRx, Akita, or NGXS.

Example using NgRx:

Install NgRx:

    
         
bash

npm install @ngrx/store

Define Actions:

    Typescript
         
import { createAction } from '@ngrx/store';

export const loadData = createAction('[Data Page] Load Data');

Reducer:

    Typescript
         
import { createReducer, on } from '@ngrx/store';

import { loadData } from './data.actions';

export const initialState = { data: [] };

const _dataReducer = createReducer(initialState, on(loadData, state => ({ ...state, data: [/* new data */] })));

export function dataReducer(state, action) {

    return _dataReducer(state, action);

}

Dispatch Actions in Component:

    Typescript
         
import { Store } from '@ngrx/store';

import { loadData } from './data.actions';

export class AppComponent {

    constructor(private store: Store) {}

    loadData() {

        this.store.dispatch(loadData());

    }

}

This helps centralize state handling and promotes scalability in your Angular applications.

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