This is a beginner-friendly course on learning the Dart language and mastering its fundamentals to build high-quality mobile apps with Flutter.

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Learn Dart for free with this interactive course. Dart is a clean, simple, class-based, object-oriented language with more structure than JavaScript, the programming language it's heavily based on. However, you can't have a conversation about Dart without mentioning Flutter. 

Flutter is Google's mobile UI framework for crafting high-quality native interfaces on iOS and Android. Flutter applications are written using the Dart programming language, which has helped make Dart a beloved language by the developer community. Before you can start fluttering out Flutter applications, you must learn Dart. This course will help you learn the fundamentals of Dart and start your journey to learning Flutter. Start learning today.

Learn Dart: First Step to Flutter

Control structures are used for determining the output of a statement

Control structures dictate the flow in which statements are executed

Control structures are diagrams used for understanding the flow of execution

What are control structures used for?

What will be the output of the following code?

```
main() {
  var a = 7;
  var b = 2;
  
  var result = a>b ? b-a : a-b;
  print(result);
}
```

What will be the output of the following code?
<pre><code>main() {
 var a = 7;
 var b = 2;
 
 var result = a&gt;b ? b-a : a-b;
 print(result);
}
</code></pre>

What will be the output of the following code?

```
main() {
  var list = [1,2,3,4,5];

  for (var i in list) {
    if (i % 2 != 0) {
     print(i);
    }
  }
}
```

What will be the output of the following code?
<pre><code>main() {
 var list = [1,2,3,4,5];

 for (var i in list) {
 if (i % 2 != 0) {
 print(i);
 }
 }
}
</code></pre>

What will be the output of the following code?

```
main() {
  dynamic constantPattern= List();

  switch(constantPattern){
    case 5:
      print("five");
      break;
    case true:
      print("truth");
      break;
    case "hello":
      print("hi!");
      break;
    case null:
      print("the empty list");
      break;
    default: 
      print("something else");
      break;
  } 
}
```

What will be the output of the following code?
<pre><code>main() {
 dynamic constantPattern= List();

 switch(constantPattern){
 case 5:
 print(&quot;five&quot;);
 break;
 case true:
 print(&quot;truth&quot;);
 break;
 case &quot;hello&quot;:
 print(&quot;hi!&quot;);
 break;
 case null:
 print(&quot;the empty list&quot;);
 break;
 default: 
 print(&quot;something else&quot;);
 break;
 } 
}
</code></pre>

How many times will the `print()` method be called in the following code?

```
main() {
 var experience = [5,1,9,7,2,4];

 for(var i = 0; i < experience.length; i++){
 var candidateExperience = experience[i];
 if(candidateExperience < 5){
 continue;
 } else {
 break;
 }
 print("Call candidate $i for an interiew.");
 }
}
```

How many times will the <code>print()</code> method be called in the following code?
<pre><code>main() {
 var experience = [5,1,9,7,2,4];

 for(var i = 0; i &lt; experience.length; i++){
 var candidateExperience = experience[i];
 if(candidateExperience &lt; 5){
 continue;
 } else {
 break;
 }
 print(&quot;Call candidate $i for an interiew.&quot;);
 }
}
</code></pre>

The assertion is true, hence the code will execute successfully

The assertion is false, however, the code will still execute successfully

The assertion is false, hence, an exception will be thrown

What will happen when we run the following code?

```
main() {
	assert((3 << 1) == 7);
}
```

What will happen when we run the following code?
<pre><code>main() {
	assert((3 &lt;&lt; 1) == 7);
}
</code></pre>

Let’s get tested on concepts you learned in this chapter.

Introduction

Getting Started with Dart

Data Types and Variables

Operators

Dart's Collection

Control Flow Statements

Exploring Functions

Classes

Where to Go From Here

Chapter Quiz