How can one retrieve the selected value from a dropdown menu in Angular?

Objective: My goal is to create a dropdown menu where users can select a value, which will then dynamically change the address of the website based on their selection.

Issue: Although I managed to make the address change upon selection, it did so for every option chosen. The desired outcome is for each selection to lead to a different address, such as site.com/en for "English" and site.com/es for "Spanish".

Attempts Made:

I have experimented with solutions found at How to get Id of selected value in Mat-Select Option in Angular 5 and reviewed Angular material documentation, although it lacked detailed information on this specific functionality.

Why isn't the specific selection being recognized?

HTML:

<mat-form-field class="right">
      <mat-select>
          <mat-option *ngFor="let language of languages" [value]="language.value" (selectionChange)="doSomething($event.value)">
              {{language.viewValue}}
          </mat-option>
    </mat-select>
</mat-form-field>

TypeScript:

doSomething(event) {
   //if value selected is spanish
   if(event == "es")
      this.routerService.navigate(['es/']);
}

Answer №1

Consider relocating your selectionChanged event listener to the select element instead of the option:

<mat-form-field class="right">
      <mat-select (selectionChange)="doSomething($event)">
          <mat-option *ngFor="let language of languages" [value]="language.value" >
              {{language.viewValue}}
          </mat-option>
    </mat-select>
</mat-form-field>

https://material.angular.io/components/select/api#MatSelect

Answer №2

Alternatively, you have the option to utilize ngModel for direct access to the value within your function

<mat-form-field class="fullwidth" required>
  <mat-label>Select</mat-label>
  <mat-select [(ngModel)]="selectedItem" (ngModelChange)="onSelectChange(selectedItem)">
    <mat-option *ngFor="let obj of testArray" [value]="obj.value">
      {{obj.name}}
    </mat-option>
  </mat-select>
</mat-form-field>

In your .ts file

onSelectChange(value) {
//if the selected value is 'es' for Spanish
  if(value == "es")
    this.routerService.navigate(['es/']);
}

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