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feat(kb/jq): filter to delete all null values

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Michele Cereda
2024-03-02 01:24:18 +01:00
parent 158e33e0e8
commit c8e0b77bbd
1 changed files with 6 additions and 0 deletions
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6
knowledge base/jq.md
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@@ -31,6 +31,10 @@ jq 'del(.country, .number, .language)' …
jq 'del(.[0,1,2])' … jq 'del(.[0,1,2])' …
jq 'del(.[0:3])' … jq 'del(.[0:3])' …
# Remove all null values.
jq 'del(..|nulls)' …
jq 'del(recurse(.[]?;true)|select(. == null))' …
# Print objects as 'key [space] "value"' pairs. # Print objects as 'key [space] "value"' pairs.
jq -r 'to_entries[] | "\(.key) \"\(.value)\""' 'file.json' jq -r 'to_entries[] | "\(.key) \"\(.value)\""' 'file.json'
@@ -112,6 +116,7 @@ All the references in the [further readings] section, plus the following:
- [Change multiple values at once] - [Change multiple values at once]
- [jq Select range] - [jq Select range]
- [Deleting multiple keys at once with jq] - [Deleting multiple keys at once with jq]
- [Remove all null values]
<!-- <!--
References References
@@ -125,4 +130,5 @@ All the references in the [further readings] section, plus the following:
[deleting multiple keys at once with jq]: https://stackoverflow.com/questions/36227245/deleting-multiple-keys-at-once-with-jq [deleting multiple keys at once with jq]: https://stackoverflow.com/questions/36227245/deleting-multiple-keys-at-once-with-jq
[filter objects list with regex]: https://til.hashrocket.com/posts/uv0bjiokwk-use-jq-to-filter-objects-list-with-regex [filter objects list with regex]: https://til.hashrocket.com/posts/uv0bjiokwk-use-jq-to-filter-objects-list-with-regex
[jq select range]: https://stackoverflow.com/questions/45548604/jq-select-range [jq select range]: https://stackoverflow.com/questions/45548604/jq-select-range
[remove all null values]: https://stackoverflow.com/questions/39500608/remove-all-null-values
[select multiple conditions]: https://stackoverflow.com/questions/33057420/jq-select-multiple-conditions#33059058 [select multiple conditions]: https://stackoverflow.com/questions/33057420/jq-select-multiple-conditions#33059058