Dart Logical Operators

Overview

Logical Operators are used to logically combine two or more Boolean expressions. A Boolean expression is an expression that evaluates to either true or false. Logical operators allow you to perform logical operations on Boolean values or logical expressions.

Dart Logical Operators

The Dart programming language provides the following logical operators::

Operator Symbol	Operation Name	Description
&&	AND Operator	The logical AND operator is used to combine two conditions and if both conditions are true, it will return true.
\|\|	OR Operator	The logical OR operator is used to combine two conditions and if even one of the conditions is true, it will return true.
\|	NOT operator	The logical NOT operator is used to reverse the result of the condition.

Example

Let’s understand the operators with a sample Dart program.

/*
* Logical Operators Dart Program
* Dart Tutorials - www.TestingDocs.com
*/

void main()
{
int x = 7;
int y = 9;

// AND operator
// checks if both x is greater than 5 and y is less than 10
bool result1 = (x > 5) && (y < 10);
print(result1);

// OR operator
// checks if either x is less than 0 or y is equal to 9
bool result2 = ( x < 0) || (y == 9);
print(result2);

// NOT operator
// checks if x is not equal to 7
bool result3 = !( x == 7);
print(result3);
}

Dart Logical Operators