Reduce size by new url generation and counter reuse

[gwer]

Url generation based on @anber_ru's proposal.

[Anber]

You forgot about non-secure/index.js and url.js. Also, the comment about low entropy is obsolete :)

[ai]

Ещё нужно сравнить результаты test/benchmark до и после этого PR

[gwer]

$ git checkout master
Switched to branch 'master'
Your branch is up to date with 'origin/master'.

$ node test/benchmark
nanoid                    282,863 ops/sec
nanoid/generate           255,983 ops/sec
uid.sync                  170,236 ops/sec
uuid/v4                   202,241 ops/sec
secure-random-string      189,137 ops/sec
shortid                    30,185 ops/sec

Async:
nanoid/async               31,993 ops/sec
nanoid/async/generate      31,449 ops/sec
secure-random-string       30,437 ops/sec
uid                        29,401 ops/sec

Non-secure:
nanoid/non-secure       1,714,070 ops/sec
rndm                    1,593,879 ops/sec

$ git checkout -
Switched to branch 'f/reduce_size_with_random_in_loop'
Your branch is up to date with 'origin/f/reduce_size_with_random_in_loop'.

$ node test/benchmark
nanoid                    294,016 ops/sec
nanoid/generate           265,646 ops/sec
uid.sync                  201,971 ops/sec
uuid/v4                   219,655 ops/sec
secure-random-string      183,223 ops/sec
shortid                    28,493 ops/sec

Async:
nanoid/async               33,153 ops/sec
nanoid/async/generate      30,710 ops/sec
secure-random-string       28,456 ops/sec
uid                        28,692 ops/sec

Non-secure:
nanoid/non-secure       1,552,124 ops/sec
rndm                    1,683,481 ops/sec

[ai]

Released in 2.1.11

[alfaproject]

Why not?

  i = size || 21
  var bytes = crypto.getRandomValues(new Uint8Array(i))

[gwer]

For better gzip compression. It makes +1 byte.

[alfaproject]

Really? o:

[gwer]

Sorry, I was wrong. +3 bytes :D

[alfaproject]

Haha