How to create JSON array?

[asm0dey]

I thought I might be able to create a JSON array, but whatever I do, it always generates an object with null values for me.

[mgree]

Can you explain what you're trying to do and what you're getting in more detail?

You should be able to do something like the following on Linux:

$ ffs --new foo.json &
$ setfattr -n user.type -v list # use xattr on macOS
$ echo hi >foo/a
$ echo hello >foo/b
$ echo howdy >foo/c
$ umount foo
$ cat foo.json
['hi', 'hello', 'howdy']

(NB I'm not at a computer with ffs installed, so it might not be exactly this way.)

[asm0dey]

OK, here is my flow:

❯ ffs --new x.json &
[1] 460213
❯ cd x
❯ md a
❯ cd a
❯ md array
❯ echo value1 > key1
❯ echo value2 > key2
❯ cd array
❯ echo > arval1
❯ echo > arval2
❯ md object_in_array
❯ cd object_in_array
❯ echo y > x
❯ cd ../../../../
❯ umount x
[1]  + 460213 done       ffs --new x.json
❯ cat x.json
{"a":{"array":{"arval1":null,"arval2":null,"object_in_array":{"x":"y"}},"key1":"value1","key2":"value2"}}

I'm honestly not sure what I'm doing wrong, probably an object can't be an element of an array? Maybe I have to stick to primitive values?

[asm0dey]

Oh, I didn't know about setfatr, I'm so sorry!