For
For[beg, cond, incr, expr]
runs a for loop.
Attributes[For] := {HoldAll, Protected}
Simple examples
In[1]:= CompoundExpression[For[n = 1, (n) < (1000), Increment[n], If[PrimeQ[n] && ((n) > (7)), Return[]]], n] Out[1]= 11
For[beg, cond, incr, expr]
runs a for loop.
Attributes[For] := {HoldAll, Protected}
In[1]:= CompoundExpression[For[n = 1, (n) < (1000), Increment[n], If[PrimeQ[n] && ((n) > (7)), Return[]]], n] Out[1]= 11