Tips for arranging mat-option in alphabetical order using typescript in Angular 7 Material Design

According to the Angular documentation, there is currently no orderBy pipe available for sorting. It is recommended to implement the sort functionality in the component. However, as a beginner in Angular, I am unsure of how to do this. Can anyone provide assistance? I am specifically looking for the code that will help me achieve this.

Here is the code for the component.ts file, where I want to sort the indianStates array based on the viewValue:

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'addressentry',
  templateUrl: './addressentry.component.html',
  styleUrls: ['./addressentry.component.css']
})
export class AddressentryComponent implements OnInit {    
  constructor() { }    
  ngOnInit() {}

  indianStates: IndianStates[] = [
    {value: 'westbengal', viewValue: 'West Bengal'},
    {value: 'sikkim', viewValue: 'Sikkim'},
    {value: 'assam', viewValue: 'Assam'}
  ];
}

export interface IndianStates {
  value: string;
  viewValue: string;
}

HTML Code:

<div class="col form-group">
    <mat-form-field>
      <mat-label >State</mat-label>
      <mat-select>
        <mat-option *ngFor="let state of indianStates" [value]="state.value">
          {{state.viewValue}}
        </mat-option>
      </mat-select>
    </mat-form-field>
  </div>

Answer №1

Organize the data in the component and then provide the sorted array to the template.

Check out a demonstration example (if you prefer sorting alphabetically): Stackblitz

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