How to filter array of objects by element property values using jq?

Question

I like to filter json files using jq:

jq . some.json

Given the json containing an array of objects:

{
  \"theList\": [
             


        

Answer 1

You could use select within map.

.theList | map(select(.id == (2, 4)))

Or more compact:

[ .theList[] | select(.id == (2, 4)) ]

Though written that way is a little inefficient since the expression is duplicated for every value being compared. It'll be more efficient and possibly more readable written this way:

[ .theList[] | select(any(2, 4; . == .id)) ]