6.3.9  Inserting an element into a list or a string

The insert command inserts elements into a list or string.

• insert takes three arguments:
  • L, a list or a string.
  • i, an integer (the index).
  • x, an object.
• insert(L,i,x) returns L with x inserted at index i and the necessary elements shifted to the right.

Examples

insert returns an error if the index is too large.