dart.tar.gz

dart2_7

Dart is a fully object-oriented, class-based, simple, and clean language. Google’s popular mobile framework, Flutter uses Dart language to implement high-quality native applications, so it’s recommended that you understand Flutter before beginning this course.

In this course, you will dive deep into Dart 2 language features while using interactive hands-on code playgrounds. This course will help you become confident with Dart extensions, enums, mixins, generics, libraries, asynchronous programming, class variables, callable classes, and generator functions.

By the end of this course, you will have a strong understanding of Dart principles, and you’ll be ready to start using this powerful language in your own projects.

Developing Web Applications with Dart

`static` methods do not have access to `this` keyword.


<code>static</code> methods do not have access to <code>this</code> keyword.

In Dart, creating classes with the sole purpose of providing utility or otherwise static methods is encouraged.

In Dart, creating classes with the sole purpose of providing utility or otherwise static methods is encouraged.

Functions can be passed as arguments to other functions.

Select all that apply for Dart’s Functions.

Select all that apply for Dart’s Functions.

Dart Generator Functions are used to generate a sequence of values on-demand lazily.

Dart Generator Functions are used to generate a sequence of values on-demand lazily.

A recursive synchronous generator function


A recursive asynchronous generator function

What kind of generator function is shown below?
```
void main() {
 Iterable<String> sequence =
 generatorFunction(['Dart', 'Flutter', 'Kotlin', 'Android']);

 print("Starting...");

 for (String value in sequence) {
 print(value);
 }
 print("DONE");
}

Iterable<String> generatorFunction(List items) sync* {
 int counter = 0;
 while (counter < items.length) {
 yield items[counter++];
 }
}
```

What kind of generator function is shown below?
<pre><code>void main() {
 Iterable&lt;String&gt; sequence =
 generatorFunction(['Dart', 'Flutter', 'Kotlin', 'Android']);

 print(&quot;Starting...&quot;);

 for (String value in sequence) {
 print(value);
 }
 print(&quot;DONE&quot;);
}

Iterable&lt;String&gt; generatorFunction(List items) sync* {
 int counter = 0;
 while (counter &lt; items.length) {
 yield items[counter++];
 }
}
</code></pre>

```
Starting...
Dart
Flutter
Kotlin
Android
DONE
```

```
Starting...
DONE
Dart
Flutter
Kotlin
Android
```

Choose the correct output for the code below:
```
void main() {
 Iterable<String> sequence =
 generatorFunction(['Dart', 'Flutter', 'Kotlin', 'Android']);

 print("Starting...");

 for (String value in sequence) {
 print(value);
 }
 print("DONE");
}

Iterable<String> generatorFunction(List items) sync* {
 int counter = 0;
 while (counter < items.length) {
 yield items[counter++];
 }
}
```

Choose the correct output for the code below:
<pre><code>void main() {
 Iterable&lt;String&gt; sequence =
 generatorFunction(['Dart', 'Flutter', 'Kotlin', 'Android']);

 print(&quot;Starting...&quot;);

 for (String value in sequence) {
 print(value);
 }
 print(&quot;DONE&quot;);
}

Iterable&lt;String&gt; generatorFunction(List items) sync* {
 int counter = 0;
 while (counter &lt; items.length) {
 yield items[counter++];
 }
}
</code></pre>

Quiz yourself on generator functions and class methods.

Introduction

Dart Extensions

Dart Enums

Dart Mixins

Dart Generics

Dart Libraries

Asynchronous Programming In Dart

Miscellaneous

Next Steps

Quiz Yourself on Generator Functions and Class Methods