Console logging in dart

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Printing to console in dart

void main() { 
 
  print("hey there"); //print a string to console
  int i =7; //a variable, an integer
  double d = 7.89;
  print(i);  //printing a variable directly
  print(d); 
 }

Console Output:

hey there
7
7.89

Embedding variables inside string

void main() { 
  int i =22; //a variable, an integer
 
  print("The value of i is $i"); //$i embeds i inside string
  print("i + 3 = ${i+3}"); //${} to hold expressions
 
  print('SQ:i + 1 = ${i+1}'); //single quotes OK
 }

Console output:

The value of i is 22
i + 3 = 25
SQ:i + 1 = 23

dart prints objects too

void main() { 
  String s = "super duper"; //a string , note uppercase 'S'
  double d = 6.2874; //a double
  var o = {"distance" : 334.2, "units": "km" }; //an object
 
  print(s);
  print(d);
  print(o);
  
}
 
 
super duper
6.2874
{distance: 334.2, units: km}