Dart is a programming language developed by Google, primarily for client development in web and mobile apps, and is integral to coding Flutter applications. Key concepts include variables, data types, conditional statements, loops, functions, and object-oriented programming, which utilize classes to create identifiable objects with specific behaviors. The document also provides syntax examples and fundamental programming concepts to guide new Dart programmers.

1. Dart Essentials
Vaibhav Bhapkar
@vaibhavbhapkar
-Power of
flutter

2. What is Dart?
Dart is a programming language designed for client
development, such as for the web and mobile apps. It is
developed by Google and can also be used to build server and
desktop applications.

3. Relation between Dart and
Flutter:
Dart is the programming language used to code Flutter apps.
Flutter is a framework.
A framework is a tool that provides ready-made components
or solutions that are customized in order to speed up
development.

4. Let’s Go…
Bohot hogya theory ab code karte hai
https://dartpad.dev/

5. How to become a Dart
programmer?

6. Hello World

7. Comments:
Comments can be used to explain Dart code, and to make it
more readable.
One line
// This is a normal, one-line comment.
Multi line
/* Comments like these are also supported. */

8. v
Variables
Variables are containers for storing data values.
SYNTAX: var variableName = value

9. v
Data Types
String
var name = 'name';
int, double, num
var year = 1977;
Booleans
var x = false;

10. v
Data Types
List
var flybyObjects = ['Jupiter', 'Saturn', 'Uranus', 'Neptune'];
map
var identifier = { key1:value1, key2:value2
[,…..,key_n:value_n] }

11. Conditional Statements:
●Use if to specify a block of code to be executed, if a specified
condition is true
●Use else to specify a block of code to be executed, if the same
condition is false
●Use else if to specify a new condition to test, if the first
condition is false

12. Operators in Dart:
The operators are special symbols that are used to carry out
certain operations on the operands.
● Arithmetic Operators : + , - , * , / , ~/ , %
● Assignment Operators : =, ??=
● Relational Operators : ==, > , < , >= , <=, !=
● Logical Operators : && , || , !

13. Conditional Statements:
if ( condition1 ){
// body of if
}
else if ( condition2 ){
// body of if
}
else {
// statement
}

14. Loops:
Looping statement in Dart or any other programming
language is used to repeat a certain set of commands until
certain conditions are not completed.
● for loop
● while loop
● do-while loop

15. for (int i = 0; i < 5; i++) {
print('Flutter');
}
while(condition){
text expression;
}
while loop
Loops:
do{
text expression;
}while(condition);
For loop
Do while loop

16. Function:
Functions are the building blocks of readable, maintainable, and
reusable code.
A function is a set of statements to perform a specific task.
Functions organize the program into logical blocks of code.

17. Function:
int add(int a, int b){
int result = a + b;
return result;
}
void main(){
var output = add(10, 20);
print(output);
}

18. Break

19. Dart – Object Oriented Programming:
In object-oriented programming, a class is a blueprint for
creating objects, providing initial values for state, and
implementations of behavior.
Class

20. An Object is an identifiable entity with some characteristics
and behaviour.
An Object is an instance of a Class.
Objects

21. Dart
class class_name {
// Body of class
}

22. Dart
class gdsc{
var name;
void func(){
print("Welcome to Flutter Festival $name");
}
}

23. void main()
{
gdsc member = new gdsc();
member.name = "kunal";
member.func();
}

24. Thank You!