2024

Classes, Objects, and Constructors Classes are essentially blueprints, or templates, for creating your own data type in your programs. For example, if you wanted to write programs about cars, it would be very difficult to do so using the primitive data types of String, int, bool, etc. Using classes, we can create our own data…

Loops For loops are very important in all programming languages, and there are a few ways to implement them in dart. List words = [‘hello’, ‘world’, ‘!’]; // 1st way // declare an int i, increment it by 1 until it is no longer // less than words.length (3 in this case) for (int i…

Conditionals If statements are simply written as follows: bool someCondition = true; if (someCondition) { print(‘someCondition is true’); } else { print(‘someCondition is false’); }

Functions   Functions are declared by specifying the return type, the name of the function, and the parameters within paranetheses. Void is used to specify the return type if nothing is returned. // doesn’t return anything but still executes some code void main() { print(‘hello world’); } // prints ‘hello’ but also returns the string…

Variables   Variables in dart are type-checked, which means that every variable must be declared with a specific type, and that type must match with what the variable is assigned throughout your programs. Here are some basic types and examples: String foo = ‘foo’; int bar = 0; double foobar= 12.454; bool isCool = true;…

Learning Dart Dart is a language developed by Google that is the backbone to the flutter framework. It is the language you will be using when you code up apps with the Flutter framework. If you have never coded before or have less experience with programming, I recommend you take a look at this excellent…

Getting Started   Before we get started with dart and flutter, we first need to set up our programming environment, which is what we will be using to code flutter apps. The two main IDEs that provide the most features for Dart and Flutter are Visual Studio Code (VS Code) and Android Studio. Choosing either…