Debugging and Optimization

Debugging Tools

• Browser Developer Tools
• Visual Studio Debugger
• Debug in Chrome/Edge
• .NET Debug Proxy

{
  "profiles": {
    "MyBlazorApp": {
      "commandName": "Project",
      "dotnetRunMessages": true,
      "launchBrowser": true,
      "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
      "applicationUrl": "https://localhost:7777;http://localhost:5555",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }
}

Performance Optimization

• Implement virtualization
• Use lazy loading
• Minimize component renders
• Optimize network calls

<Virtualize Items="@items" Context="item">
    <ItemTemplate>
        <div>@item.Name</div>
    </ItemTemplate>
</Virtualize>

Memory Management

public void Dispose()
{
    // Clean up subscriptions
    subscription?.Dispose();
    // Dispose other resources
    jsModule?.DisposeAsync();
}

Error Handling

<ErrorBoundary>
    <ChildContent>
        <ComponentThatMightError />
    </ChildContent>
    <ErrorContent>
        <p>An error has occurred.</p>
    </ErrorContent>
</ErrorBoundary>

Logging

@inject ILogger<Counter> Logger

private void LogError(Exception ex)
{
    Logger.LogError(ex, "An error occurred");
}