Expression to display n/a if EMPTY and display original input if not blank

[batvan276]

Hello Community, 

I keep getting an invalid expression and keep getting Blanks  with the below ; 

if(empty('Responses Comments'),'n/a','Responses Comments')

I am trying to input "n/a" in a Send Email Action if an approver did not input any Approver Comments. 

Appreciate any input. 

[batvan276]

Tried the below ; 

if (empty(triggerOutputs()?['body/comments']), 'n/a', triggerOutputs()?['body/comments'])

n/a appears for both blank and also anything inputted in the Approver Comment field. 

[batvan276 · Accepted solution]

I hovered over Responses Comments and figured it out 

if(empty(items('Apply_to_each_2')?['comments']),'n/a', items('Apply_to_each_2')?['comments'])

[v-LilyW-msft]

Hi @batvan276 

Glad that you have resolved your problem.

And thanks for your posting and sharing the solution in the forum.

Best Regards,

Lily