Setting variable names dynamically using JS

lt_kn_char

Hey Guys,

I'm right now setting up an experiment where I need to dynamically define text stimuli presented in a sketchpad. The stimuli all come from three different lists and are placed on the sketchpad dependent on their list location. To prepare the stimuli for the visual presentation on the sketchpad I need to dynamically create variables - where the variable name is depending on the location list and the specific place inside the list. Yet I managed to do so in python using a var.set() command. Now as I try to set the experiment up online I'm having some trouble translating my python solution to JS.

Here is a code snipped of the python solution, followed by my current JS approach:

As you can see what I yet have tried is to define the name variable as a list and then try to use it's content (content) as a variable name. Though this does not work - probably because all it does is to overwrite the content of the name (variable rank_var_name[0]).

Do you have any suggestion how I can set the variable names to the content of my name variable (rank_var_name) in javascript?

Thanks in advance,

Leo

sebastiaan

Hi @lt_kn_char ,

In OpenSesame 4.0, which I recommend for new experiments, you don't need the var or vars object anymore, because experimental variables are simply available as global variables in inline_script and inline_javascript items. See:

• https://osdoc.cogsci.nl/4.0/notes/400/#experimental-variables-are-globals

The JavaScript way to set variables that themselves have a variable name is using the window object, which is a container that holds all global variables.

This means that the equivalent of:

var.set(rank_var_name, content)     # python with var object
globals()[rank_var_name] = content  # python without var object

Would be:

window[rank_var_name] = content     # javascript without vars object

Hope this helps!

— Sebastiaan

lt_kn_char

This works perfect, thank you!