<h1 id="heading-control-flow-operator">Control flow operator</h1>
<ul>
<li>Dart offers collection if and collection for for use in list, map, and set literals.
</li>
<li>You can use these operators to build collections using conditionals (if) and repetition (for).
</li>
</ul>
<h1 id="heading-example">Example</h1>
<pre><code class="lang-dart">var nav = ['Home', 'Furniture', 'Plants', if (promoActive) 'Outlet'];
</code></pre>
<ul>
<li>If - case statement</li>
</ul>
<pre><code class="lang-dart">var nav = ['Home', 'Furniture', 'Plants', if (login case 'Manager') 'Inventory'];
</code></pre>
<ul>
<li>collection for to manipulate the items of a list before adding them to another list.</li>
</ul>
<pre><code class="lang-dart">var listOfInts = [1, 2, 3];
var listOfStrings = ['#0', for (var i in listOfInts) '#$i'];
assert(listOfStrings[1] == '#1');
</code></pre>

# Control flow operator

* Dart offers **collection if** and **collection for** for use in list, map, and set literals.
    
* You can use these operators to build collections using conditionals (if) and repetition (for).
    

# Example

```dart
var nav = ['Home', 'Furniture', 'Plants', if (promoActive) 'Outlet'];
```

* If - case statement
    

```dart
var nav = ['Home', 'Furniture', 'Plants', if (login case 'Manager') 'Inventory'];
```

* **collection for** to manipulate the items of a list before adding them to another list.
    

```dart
var listOfInts = [1, 2, 3];
var listOfStrings = ['#0', for (var i in listOfInts) '#$i'];
assert(listOfStrings[1] == '#1');
```

Dart Control FLow Operators

Control flow operator

Example