first and rest are defined in terms of position, and work on anything that
can be treated as an ordered collection

peek and pop work in terms of "natural insertion order" and only work with
things that behave like a stack - (so not lazy-seqs, strings, etc.)

lists push and pop from the front, vectors push and pop from the end,
queues push to one end, pop from the other

On Thu, Nov 9, 2017 at 6:06 PM Ethan Brooks <ethanabro...@gmail.com> wrote:

> Also, pop throws an exception on the empty list whereas rest returns ().
>
> On Thursday, May 30, 2013 at 12:43:14 AM UTC-4, Seven Hong wrote:
>>
>> Hi all,
>>
>> Could some one explain what's the difference between first and peek, rest
>> and pop? For me it looks like they behave exactly same on sequences..
>>
>> Thanks!
>>
>> Best,
>>
>> Seven Hong
>>
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