top level functions for easy jbang one liners

[maxandersen]

Been playing with jbang -c lately and seen some constructs that could be easier.

simple repeat

Having to do foreach is verbose IntStream.range() kinda works:

jbang -s faker@jbangdev -c "IntStream.range(1,5)).forEach(i -> println(faker.chuckNorris().fact()))"

But maybe we should have times(int) method akin groovy 5.times(lambda):

jbang -s faker@jbangdev -c "times(5).forEach(i -> println(faker.chuckNorris().fact()))"

Argument parsing

Passing arguments to a oneline is tedious:

jbang -s faker@jbangdev -c "IntStream.range(1,Integer.valueOf(args[0])).forEach(i -> println(faker.chuckNorris().fact()))"

Maybe make a iargs(pos) as shorthand:

jbang -s faker@jbangdev -c "IntStream.range(1,iargs(0)).forEach(i -> println(faker.chuckNorris().fact()))"

others ?

[quintesse]

I find iargs to be a bit ... ickly :-)

Perhaps we can do something similar to Line? And have a class called Args which has the same s(), i() and d() methods and can be accessed using $args or something like that.

Another option would be to create toplevel methods int(String s) and int(String s, int defaultValue) , etc

[maxandersen]

Args as Line means you can index them directly...unless you mean args[0].s(), args[0].i() that could work but needs to be something else than args as that is already the string array.

[maxandersen]

something like (as you suggested):

$args[0].s()
$args[1].d(23)  //returns 23 if can't be parsed
$args[2].i()

[maxandersen]

where $args is "rich" as opposed to just args :)

[maxandersen]

Also something to say "give me all lines" as lines() in itself can be too verbose:

 http "https://random-word-api.herokuapp.com/word?number=10" | jbang -s jackson.jsh -c "println(json.readTree(lines().collect(Collectors.joining())))"