yq/operators/collect-into-array.md

Collect into Array

This creates an array using the expression between the square brackets.

{% hint style="warning" %} Note that versions prior to 4.18 require the 'eval/e' command to be specified.

yq e <exp> <file> {% endhint %}

Collect empty

Running

yq --null-input '[]'

will output

[]

Collect single

Running

yq --null-input '["cat"]'

will output

- cat

Collect many

Given a sample.yml file of:

a: cat
b: dog

then

yq '[.a, .b]' sample.yml

will output

- cat
- dog