2.1.4 Bool
Define: Bool
Represents a value which can be either true or false.
Values of type Bool
are a common occurence in conditions such as if
and while
. The following operators accept and return Bool
values:
&&
(and)||
(or)!
(not)
Haxe guarantees that compound boolean expressions are evaluated from left to right and only as far as necessary at run-time. For instance, an expression like A && B
will evaluate A
first and evaluate B
only if the evaluation of A
yielded true
. Likewise, the expressions A || B
will not evaluate B
if the evaluation of A
yielded true
, because the value of B
is irrelevant in that case. This is important in cases such as this:
if (object != null && object.field == 1) { }
Accessing object.field
if object
is null
would lead to a run-time error, but the check for object != null
guards against it.