| Splice | Slice | |
|---|---|---|
| Modifies Original array | Yes | No |
| Returns | Array of deleted items | Array of selected items |
| Can be used on Strings | No | Yes |
| Can be used on Arrays | Yes | Yes |
| Method Signature | (startIndex, ?deleteCount, ...newItemsToAdd) | (?startIndex,?endIndex) |
| Best way to remember | Splice splits. | Slice slips. |