Gain insights into Dart, an object-oriented language crucial for Flutter development. Delve into its fundamentals and prepare to craft high-quality native interfaces on iOS and Android.

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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

# Task

In this challenge, you had to create a function that returns the result of another function.


# Solution

A skeleton of the function was already provided for you. Let's look it over.

```dart
num arithmeticCalculator(Function f, int x, int y){

}
```

The function name is `arithmeticCalculator` and it has three parameters. The first parameter is another function, `f`. The second parameter is an integer, `x`, and the third parameter is an integer, `y`.

You had to write a line of code that would print the result of `f` given that it was passed `x` and `y` as arguments. 

```dart
f(x,y)
```

You can find the complete solution below:

>You were required to write the code given on **line 2**.

Let’s go over the solution for the challenge: Write Your First Higher-Order Function.

Introduction

Getting Started with Dart

Data Types and Variables

Operators

Dart's Collection

Control Flow Statements

Exploring Functions

Classes

Where to Go From Here

Solution Review: Write Your First Higher-Order Function

Task

Solution