Unable to find match with yq in for loop

I have a yaml file called teams.yml that looks like this:

test:
  bonjour: hello
loop:
  bonjour: allo

I want to loop over an array and get itsvalues matching a key in the yaml. I have tried yq e 'keys | .[] | select(. == "test")' .github/teams.yml and it returns test whereas yq e 'keys | .[] | select(. == "abc")' .github/teams.yml returns nothing which is enough to get the information I am interested in.

The issue is that, when using the same logic in a for loop, yq returns nothing:

#!/bin/bash

yq e 'keys | .[] | select(. == "abc")' .github/teams.yml # Prints nothing
yq e 'keys | .[] | select(. == "test")' .github/teams.yml # Prints 'test'

ar=( "abc" "test" "xyz" )
for i in "${ar[@]}" # Prints nothing
do
  yq e 'keys | .[] | select(. == "$i")' .github/teams.yml 
done

What explains the lack of output in the for loop?

>Solution :

Call yq with the loop variable set in the environment, and use env within yq to read environment variables. See also the section Env Variable Operators in the manual.

ar=( "abc" "test" "xyz" )
for i in "${ar[@]}" # Prints nothing
do
  i="$i" yq e 'keys | .[] | select(. == env.i)' .github/teams.yml 
done