What is the definition of boolean?

Exampe of Boolean and usage in the real Word

<code>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;
}
</code>