RestOrDefault

RestOrDefault[expression]⟹result

returns the expression with the first element removed or Null if expression is length 0.

RestOrDefault[expression,default]⟹result

returns the expression with the first element removed or default if expression is length 0.

Details

Returns the list with the first element removed:

Returns Null if expression is of length 0 and no default value given:

Returns default value if expression is of length 0:

Operates on Associations:

Operates on arbitrary expressions: