LS : 5.6.68+240625
I'm trying to show a question based on the start language (Survey is English and French, and I want to show a question only if start language was French).
I've tried:
if(STARTLANGUAGE=="fr",1,0)
and
if(LANG=="fr",1,0)

But neither works. What am I doing wrong?

Hi,
what is this?
if(LANG=="fr",1,0)
Is it a question of type equation, or?

To be honest, I do not trust this variable LANG.
Therefore I recommend to create a question of type equation (language) with
english text: {1}
french text: {2}

Now you can use this as condition like
language==2

Here screenshots for German and English
German: both questions
 
English: Only the second question
 

Joffm
 

Thanks for the suggestion. What I meant was that I'd like to be able to evaluate the lang= parameter that the survey is loaded on.

For example, let's assume I have a bilingual survey with English as base language, and also French, so the survey URLs are:

survey.com/192932?lang=fr
and
survey.com/192932?lang=en

Now I want to have a relevance equation to check if the survey was started with lang=fr or lang=en, so I can show a question to participants who started the survey in French (lang=fr).

Is there a way to accomplish this?

Exactly this is what I showed.

so I can show a question to participants who started the survey in French

As you see in the screenshots the first German question is onyly displeayed if the language is "German"
In case the language is "English": it is not shown.

As I said, I do not really trust the LANG variable.
But today I tested again in 5.6.57

And here
Only with conditions like
LANG=='fr' or LANG!='en'
or something like that.

German
Only first question
 
English
Both questions
   
French
Only second question.



So everything is fine.
Joffm