Undefined error when refreshing Angular page

One particular page on my forum-like website is causing issues with refreshing.

In my project, users can log in, view their profiles as well as others'. However, when I refresh a profile page, no data loads from the server and an error appears in the console: "ERROR TypeError: t is undefined".

The code snippet below showcases the TypeScript file for visiting profiles:

import { Component, OnInit } from '@angular/core';
import { DataExchangeService } from "../data-exchange.service";
...

// Further explanation and troubleshooting efforts follow but have been summarized for brevity.

Additional insights: Upon investigating the console error message, it seems that "t" corresponds to a variable within the "getUser" method. Also, the "DataExchanceService" service stores the static variable "visitedUser," which aids in loading user data. Despite attempts to define this variable, the issue persists.

Edit: Recent findings indicate that "t" is linked to the "jas" variable, leading to a new error message stating "this.jas is undefined." Various strategies to address this problem have been unsuccessful thus far.

angulartypescripthttp

Answer №1

After some investigation, I discovered that my variable "DataExchangeService.visitedUser" was being deleted every time I refreshed the page (pretty obvious, I know...)

To solve this issue, instead of storing the username in a service variable, I decided to save it in the local storage.

I made the following changes:

this.getUser(DataExchangeService.visitedUser);

was replaced with:

this.getUser(localStorage.getItem("visitedUser"));

and

visitUser(follow: any) {
    DataExchangeService.visitedUser = follow.username;
    this.getUser(DataExchangeService.visitedUser);
  }

was updated to:

visitUser(follow: any) {
    localStorage.setItem('visitedUser', follow.username);
    this.getUser(localStorage.getItem("visitedUser"));
  }

And voila, problem solved!

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