gocryptotrader/web/src/app/shared/sell-form/sell-form.component.ts

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

@Component({
  selector: 'app-sell-form',
  templateUrl: './sell-form.component.html',
  styleUrls: ['./sell-form.component.scss']
})
export class SellFormComponent implements OnInit {
  public exchangeName :string;
  public currencyName :string;
  public chooseCurrencyMessage :string = "Please select a currency";
  public showErrorMessage :boolean;
  
    constructor() { }
  
    ngOnInit() {
      if (window.localStorage["selectedExchange"] !== undefined && 
      window.localStorage["selectedCurrency"] !== undefined) {
        this.exchangeName = window.localStorage["selectedExchange"]; 
        this.currencyName = window.localStorage["selectedCurrency"]; 
      } else {
        this.showErrorMessage = true;
      }
    }
}