jq

services to practice JSON parsing

• https://jsonplaceholder.typicode.com/

minify JSON with jq

# --compact-output | -c
$ jq -c input.json

if with no else

Else is mandatory, but you can use empty to make it do nothing.

jq 'if CONDITION then SOMETHING else empty end' input.json

return empty string if result is null

# use '// empty' at the end of the expression
jq '.EXPRESSION // empty' input.json