delete

delete an item from a dict or list

(any xs, any key) -> any

Given a list or dict xs, returns a collection of the same type consisting of all elements of xs, except for the element at key or index key.

If xs is a list, any elements past the deleted index are shifted to the left.

Returns nil if xs is nil.

Retrurns xs if xs does not have the given key.

Returns xs if key is nil.

Throws an error if xs is a list and key cannot be cast to a long.

Throws an error if xs is a dict and key cannot be cast to a string.

Parameters