I am wondering how to get value from local storage for a dropdown and I am very stuck on it and tried some related code present in a stack overflow but no luck!

my dropdown

 <p-dropdown *ngIf="languages.length" 
[options]="languages" 
[(ngModel)]="selectedLanguage.name" optionLabel="name"
(onChange)="modo(selectedLanguage.mod)"></p-dropdown>

Saving selected language to local storage that works fine

    onChangeDropDown() {
        localStorage.setItem('selectedLanguage', this.selectedLanguage.name);
}

getting languages from a JSON file

// its not working
 this.selectedLanguage = localStorage.getItem('selectedLanguage');

//JSON data
 this.httpClient.get<any>('../assets/data/languages.json')
            .toPromise()
            .then(res => res.data as any[])
            .then(data => this.languages = data);