Lambda - Incrementing a variable in a loop

Mr_English

I have an int variable called count_emails.

I wanted to use it as a counter by incrementing it in a foreach loop. I thought a simple example like this would be a good way to start with lambdas.

I tried both of the following, but the value of count_emails remains 1. - see screenshot 2

return $var.count_emails++;
return $var.count_emails = $var.count_emails + 1;

Screenshot 1 shows the code.

Is it possible to create a counter like this? Or have I got the wrong idea?

Screenshot 1

Screenshot 2

Liz Anaya

Hey @Mr_English ! 👋

I recorded this video that explains what is going on with the Lambda: https://www.loom.com/share/ee01b4dc4b384266a8d6b127df8d88c2?sid=2950c3c4-c82e-44a8-9af1-ce25f27b12eb

Check it out, and let me know if you have any questions. 😊

Mr_English

@Liz Anaya Woud it be a good idea to have a category specifially for Lambdas?

Mr_English

I've solved the anove requirement of keeping count, using Add Number. Still interested in lambdas though.

Mr_English

Hi @Liz Anaya Thank you so much for taking the time to create that video. I had missed the concept of the variables only being referenced, not updated. It really helped.

Tony