AppendTo

AppendTo[s, elem] appends elem to the value of s, and resets s to the result.

AppendTo[s, elem] is equivalent to s = Append[s, elem].

AppendTo[s, elem] does not evaluate s.

You can use AppendTo repeatedly to build up a list.

An alternative and often more efficient way to build up a list is to use a sequence of assignments of the form s = s, elem, and then to call Flatten on the resulting structure.

See The Mathematica Book: Section 2.4.4.

See also: PrependTo.

Further Examples