CompoundExpression
CompoundExpression[e1, e2, ...]
evaluates each expression in order and returns the result of the last one.
Attributes[CompoundExpression] := {HoldAll, Protected, ReadProtected}
Simple examples
The result of the first expression is not included in the output, but the result of the second is:
In[1]:= CompoundExpression[a = 5, a + 2*-1] Out[1]= 3
Including a trailing semicolon causes the expression to return Null
:
In[2]:= CompoundExpression[a = 5, a + 2*-1, Null] Out[2]= Null