Output as null terminated string \0

[lamyergeier]

Is it possible to get output as null terminated string \0?

[wader]

Yes use --raw-output0

$ jq -n --raw-output0 '"abc","def"' | hexdump -C
00000000  61 62 63 00 64 65 66 00                           |abc.def.|
00000008

but there is caveat

$ jq -n --raw-output0 '"\u0000"'
jq: error (at <unknown>): Cannot dump a string containing NUL with --raw-output0 option