Handle your mistakes! Your application will have blunders. You must deal with them. That is awful. If it will fizzle with an unrecoverable mistake, your application ought to be proactive about it. On the off chance that it should crash, your application should put forth the attempt to do so nimbly. It ought to try and show some strength and not accident too badly — not lose any information, and so forth

Your application ought to likewise be accountable — telling the client what simply occurred, and not simply leaving them featuring on a red screen. Like documentation, mistake taking care of is by all accounts the last thing we developers consider when developing software. That is bad.

In

this blog, we will exploretheError Handling With Future & Try-Catch Block In Dart**.** We’ll stroll through errors you will probably encounter when developing, how to catch and deal with handle errors in Dart, which likewise works in Flutter applications.

Table Of Contents ::

What is Error Handling?

_What is Error Handling with __Future?_

_How to Using _then_'s __onError_

_Why we should using __catchError?_

_How to Using __onError?_

_Using __whenComplete_

Error Handling with Try-Catch Block

Conclusion

What is Error Handling?:

Error handling alludes to the expectation, detection, and goal of programming, application, and correspondence mistakes. Specific programs, called error overseers, are accessible for certain applications. The best programs of this kind hinder mistakes if conceivable, recuperate from them when they happen without ending the application, or (as a last fails) nimbly end an influenced application and save the error data to a log document.

Uncommon applications known as error controllers are accessible for specific applications to help in mistake taking care of. These applications can expect mistakes, consequently helping in recovering without a genuine end of the application.

#flutter #future #error-handling #dart