Define and give an example of Boolean?

Answer 1

Boolean is a data type that can have one of two possible values, either true or false. Boolean values are often used in programming to represent the outcome of a logical comparison or operation.

For example, in a program that checks whether a number is greater than 5, the result of the comparison "number > 5" would be a Boolean value of either true (if the number is greater than 5) or false (if the number is less than or equal to 5).

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Answer 2

Exampe of Boolean and usage in the real word

Operators

Operator

=

Equal to

!=



^=

Not equal to

<

Less than



Greater than

>=

Greater than or equal to

is null

Value is null

is not null

Value is other than null

like

Value is an instance of pattern-matching string

not like

Value is not an instance of pattern-matching string



Condition is a Boolean value



("Petar" === "John") //This is false



("Petar" === "Petar") This is true



 

if (condition) {

   code to be executed if condition is true;

}

Answer 3

A Boolean is a variable that can be assigned one of two values.

* True or

* False It is called Boolean after George Bool who founded the use of Boolean logic in the field of computer science.