Cheatsheet Pages / jq Cheatsheet
How to deduplicate values with jq — unique
The same city appears three times and you want each value once.
Every filter was executed against the cheatsheet's sample config.json with jq 1.7 before publishing; the sample file sits at the bottom of the cheatsheet so you can reproduce every output.
jq '.users | map(.city) | unique' config.json
# output: ["lisboa","madrid"]Good to know
unique sorts as it deduplicates — feed it a plucked array of the field you care about.
