Append

Append[expr,elem]
gives expr with elem appended.

Append[elem]
represents an operator form of Append that can be applied to an expression.

DetailsDetails

  • In iteratively building a list, it is usually more efficient to use Sow and Reap than to use Append[list,new] at each step.
  • Append works on SparseArray objects, returning ordinary lists if necessary.
  • Append can be used on Association objects. Single new elements are specified in the form . New values replace older ones if their keys are the same.
  • Multiple elements to append to an association can be specified in the form .
  • Append[elem][expr] is equivalent to Append[expr,elem].
Introduced in 1988
(1.0)
| Updated in 2014
(10.0)