Operators

Operators in Dart are special symbols or phrases used to perform operations on variables and values. Dart, like many other programming languages, includes a variety of operators to manipulate data in different ways. These operators are categorized into several types based on their functionality: arithmetic, equality and relational, type test, logical, bitwise, and assignment operators.

Syntax

Operators in Dart follow typical programming syntax and are used in conjunction with operands. The general syntax can be described as:

operand1 operator operand2

Types of Operators

Example

Here is a simple Dart program that demonstrates the use of various operators:

void main() {
  // Arithmetic Operators
  int a = 10;
  int b = 5;
  print('a + b = ${a + b}');
  print('a - b = ${a - b}');
  print('a * b = ${a * b}');
  print('a / b = ${a / b}');
  print('a % b = ${a % b}');
  print('a ~/ b = ${a ~/ b}');

  // Equality and Relational Operators
  print('a == b: ${a == b}');
  print('a != b: ${a != b}');
  print('a > b: ${a > b}');
  print('a < b: ${a < b}');
  print('a >= b: ${a >= b}');
  print('a <= b: ${a <= b}');

  // Logical Operators
  bool x = true;
  bool y = false;
  print('x && y: ${x && y}');
  print('x || y: ${x || y}');
  print('!x: ${!x}');

  // Bitwise Operators
  int c = 3;
  int d = 5;
  print('c & d: ${c & d}');
  print('c | d: ${c | d}');

  // Assignment Operators
  int e = 5;
  e += 2;
  print('e: $e');
}

The above code will give the following output:

a + b = 15
a - b = 5
a * b = 50
a / b = 2
a % b = 0
a ~/ b = 2
a == b: false
a != b: true
a > b: true
a < b: false
a >= b: true
a <= b: false
x && y: false
x || y: true
!x: false
c & d: 1
c | d: 7
e: 7