July 2010
1 post
1 tag
Swapping variable values using multiple assignment...
Lua allows multiple assignment, where a list of values is assigned to a list of variables in one step. Both lists have their elements separated by commas. For instance, in the assignment
a, b = 10, 2*x
the variable a gets the value 10 and b gets 2*x.
In a multiple assignment, Lua first evaluates all values and only then executes the assignments. Therefore, we can use a multiple assignment...