Boolean Type - `bool`

The boolean is a simple binary value that may be either true or false. The value can be also represented as 0 (false) and 1 (true).

Booleans are commonly used in conditional statements and loops, where relational expressions and logical expressions are used to determine the flow of the program, and implement complex logic.

Examples

Simple bool variable definitions

var var1: bool = false;
var var2: bool = true;

Comparison of two numbers

var var3: num = 3;
var var4: num = 48;
var equal: bool = var10 <= var11; // 3 smaller than 48 -> True

Using a boolean as a number

var var5: bool = True;
var var6: num = (var18 as num) + 2; // -> 3

Using a boolean inside an if statement

External boolean variable:

  var var7: bool = externalNumber % 10 == 0;
  if (var7) {
      // This code will be executed
  } else {
      // This code will not be executed
  }

Direct boolean expression (relational expressions or logical expressions):

  if (externalNumber % 10 == 0) {
      // This code will be executed
  } else {
      // This code will not be executed
  }

Using a boolean inside a while loop

External boolean variable:

  var var8: bool = validNumber(1);
  while (var8) {
      // This code will be executed
      var8 = false;
  }

Direct boolean expression (relational expressions or logical expressions):

  while (validNumber(1)) {
      // This code will be executed
  }

Boolean Type - bool