108. Why would you Need Services

Jul 15, 2026 04:40 · 2:04 · English · Whisper Turbo · 2 वक्ता

यो प्रतिलिपि आज म्याद समाप्त हुन्छ । स्थायी भण्डारणका लागि स्तरबृद्धि गर्नुहोस् →

पढाइ अनुक्रमणिका

0:02

S… Speaker 2 (108. Why would you Need Services)

Here's an example app which you can find attached to this lecture.

0:05

S… Speaker 2 (108. Why would you Need Services)

Here we can create some accounts.

0:07

S… Speaker 2 (108. Why would you Need Services)

You see we start with three accounts here at the bottom.

0:10

S… Speaker 2 (108. Why would you Need Services)

We can switch the status of these accounts and you can see that whenever I

0:14

S… Speaker 2 (108. Why would you Need Services)

switch it I log something to the console.

0:16

S… Speaker 2 (108. Why would you Need Services)

You can also see that this gets locked if I create

0:20

S… Speaker 2 (108. Why would you Need Services)

a new account here.

0:21

S… Speaker 2 (108. Why would you Need Services)

And overall what we got here is the logging and

0:25

S… Speaker 1 (108. Why would you Need Services)

the data storage.

0:26

S… Speaker 2 (108. Why would you Need Services)

So in general tasks which might be centralized.

0:29

S… Speaker 2 (108. Why would you Need Services)

We also communicate between these components.

0:32

S… Speaker 2 (108. Why would you Need Services)

That's another area where services can be really helpful.

0:36

S… Speaker 2 (108. Why would you Need Services)

Because let's have a look at our code.

0:38

S… Speaker 2 (108. Why would you Need Services)

I got three components.

0:40

S… Speaker 2 (108. Why would you Need Services)

The app component,

0:41

S… Speaker 2 (108. Why would you Need Services)

then the account and the new account component.

0:44

S… Speaker 2 (108. Why would you Need Services)

The app component is where all comes together.

0:47

S… Speaker 2 (108. Why would you Need Services)

There in the template I embed the app new account and the app account component

0:52

S… Speaker 2 (108. Why would you Need Services)

and I use property and event binding to pass data around.

0:56

S… Speaker 1 (108. Why would you Need Services)

For example,

0:57

S… Speaker 2 (108. Why would you Need Services)

I loop through all accounts,

0:58

S… Speaker 2 (108. Why would you Need Services)

which are right now stored in the app component here,

1:01

S… Speaker 2 (108. Why would you Need Services)

and I pass them via property binding to the app account

1:05

S… Speaker 2 (108. Why would you Need Services)

component here.

1:06

S… Speaker 2 (108. Why would you Need Services)

And there,

1:08

S… Speaker 2 (108. Why would you Need Services)

on the other hand,

1:09

S… Speaker 2 (108. Why would you Need Services)

I have an event,

1:10

S… Speaker 2 (108. Why would you Need Services)

which gets fired when I click one of the three change the status buttons,

1:14

S… Speaker 2 (108. Why would you Need Services)

which is submitted here,

1:15

S… Speaker 2 (108. Why would you Need Services)

which will be catched by my app component,

1:19

S… Speaker 2 (108. Why would you Need Services)

where I then handle it again.

1:20

S… Speaker 2 (108. Why would you Need Services)

So I do have event binding to be informed in my app component whenever

1:24

S… Speaker 2 (108. Why would you Need Services)

something changes in the account component.

1:27

S… Speaker 2 (108. Why would you Need Services)

Pretty much the same happens in the new account component.

1:30

S… Speaker 2 (108. Why would you Need Services)

There I can also listen to a click when I create a new account and on

1:34

S… Speaker 2 (108. Why would you Need Services)

such a click, I emit some data to the app component.

1:38

S… Speaker 2 (108. Why would you Need Services)

So this is all fine,

1:40

S… Speaker 2 (108. Why would you Need Services)

but we already got quite a complex setup here to pass data around.

1:44

S… Speaker 2 (108. Why would you Need Services)

And that even though that it's still relatively simple,

1:47

S… Speaker 2 (108. Why would you Need Services)

it's not a complex app here after all.

1:50

S… Speaker 2 (108. Why would you Need Services)

Now in this lecture,

1:51

S… Speaker 2 (108. Why would you Need Services)

we're going to see how services can help us with that and what we

1:56

S… Speaker 2 (108. Why would you Need Services)

have to watch out for.

1:57

S… Speaker 2 (108. Why would you Need Services)

So let's dive into it and build our first service in the

2:01

S… Speaker 1 (108. Why would you Need Services)

next lecture.

यो प्रतिलिपि AI (स्वचालित वक्तव्य पहिचान) द्वारा उत्पन्न गरिएको थियो । त्रुटि समावेश गर्न सक्छ - महत्वपूर्ण प्रयोगका लागि मौलिक अडियोसँग रुजु गर्नुहोस् । AI नीति

❤️ प्रेम STT.ai? आफ्नो साथीहरूलाई भन्नुहोस्!

सारांश

यो लिखितको AI सारांश उत्पन्न गर्न सारांश गर्नुहोस् क्लिक गर्नुहोस् ।

यो प्रतिलिपि बारे AI सोध्नुहोस्

यो transcript बारेमा केही सोध्नुहोस् - एआई सम्बन्धित खण्डहरू र जवाफ पाउनुहुनेछ.

अर्को प्रतिलिपि गर्नुहोस्