demos from presentation at nushell core team meeting

demos.nu

# stream plugin
stream_example seq 1 10
stream_example seq 1 10 | describe
seq 1 10 | stream_example sum
stream_example seq 1 10000 | stream_example sum
[foo bar baz] | stream_example collect
[foo bar baz] | stream_example collect | describe

# engine calls (wip)
seq 1 5 | stream_example for-each { $in * 2 }

# basic tee
seq 1 100 | tee { save -f numbers.txt } | math sum

# capture stderr tee
do { nu --log-level trace -c 'print 5' } | tee -e { lines | find perf | save -f perf.log.txt }

# see plugin protocol
do { nu --log-level trace -c 'seq 1 5 | stream_example for-each { $in * 2 }' } | tee -e { lines | find plugin | save -f plugin.log.txt }

# interleave
seq 1 50 | wrap a | interleave { seq 1 50 | wrap b }
(
  interleave
    { ^find . -name '*.md' | lines | each { "md:   " ++ $in } }
    { ^find . -name '*.toml' | lines | each { "toml: " ++ $in } } |
    to text
)