Hello World

 

Step 1: Create a folder “learning dart” and open it using VS code.

Then create inside this folder a file “helloworld.dart”.




Note: the role of “.dart” extension is to specify a Dart program file.

 

Step 2: Write this code in it:

void main() {

  print("hello World!");

}



  • Semicolons ( ; ) :

    Every individual statement must be ended with a semicolon (necessary).

  • Whitespace, tabs & line breaks:

    These are very important to make the program easy to read and understand.

  • Block:

    { start of block
    statement(s)
    } end of block
    the role of these two curly braces is to group all of the statements.

  • main():

    The starting point for program execution. A program usually stops executing at the end of main. It is required for every program.

  • print():

    The function that display the content between double quotes to the screen.

 

Note: Dart is a case-sensitive.

          Ex: “Start” and “start” are not the same.

 

Step 3: Run the program:




Note: It the debug console is not shown when you clicked on run you must open it .