Thread by @GopinathanAswin

Future v/s Streams

A restaurant analogy thread 🧵👇🏻

#flutter #flutterdev

Imagine you go to a restaurant and your date gives you two options:

1. Takeout and eat at your home

2. Find a table and eat there itself

Well these options in the Flutter world means:

1. Future

2. Stream

Okay! Lets see the first option: Takeout

You ordered:

1. Burgers 🍔
2. Fries 🍟
3. Pizza 🍕

The waiter gave you a token and asked you to wait.

<Few moments later>

Your takeaway is ready and you both leave the place.

This is how Future works, you ask your code to send some data and you wait for it.

When all your data is ready, you get it and you continue with your execution of other tasks.

Now, lets see the 2nd option: Dine at the restaurant

You and your date ordered:

1. 2 pizzas 🍕
2. Ramen noodles 🍜
3. Salad 🥗

The waiter cant bring everything together, so they sent one by one as it gets cooked.

So, here both of you have subscribed to the stream (food)

And you get them one by one as soon as its ready.

In this case, you are listening to incoming food (stream) and performs action on them (eat).

So this is how streams work in Dart!

If you got to learn something new from this thread, do like and retweet so that it can reach more wonderful developers like you 👩🏻‍💻🧑🏻‍💻

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I will be sharing more as i keep on learning new things in Dart and Flutter 💙