Boolean built-in type. Boolean built-in type. Cast an [int] value to a boolean value, this method will return [code]true[/code] if called with an integer value different to 0 and [code]false[/code] in other case. Cast a [float] value to a boolean value, this method will return [code]true[/code] if called with a floating-point value different to 0 and [code]false[/code] in other case. Cast a [String] value to a boolean value, this method will return [code]true[/code] if called with a non-empty string and [code]false[/code] in other case. Examples: [code]bool("False")[/code] returns [code]true[/code], [code]bool("")[/code] returns [code]false[/code].