RefEquals
Jump to navigation
Jump to search
The refEquals
function checks two values for reference equality. This is different from the ==
operator, which checks whether two values are equivalent (e.g., two maps that contain equal key/value pairs, or two lists which contain equal values).
Whenever refEquals(a, b)
is true (1), then you know that any modification of a
will also be seen via b
, because a
and b
refer to the same object.
Arguments
Parameter Name | Default Value | Meaning |
---|---|---|
a | any value | first argument |
b | any value | second argument |
Example
a = {"foo":42}
b = a
c = {"foo":42}
print a == b // prints 1, because a and b have the same value
print a == c // prints 1, because a and c have the same value
print refEquals(a,b) // prints 1, as these are the same map
print refEquals(a,c) // prints 0, as these are different maps