Mouse undefined

zach_researcher

Hello,

I'm trying to get coordinates of a subject's mouse clicks with inline javascript but I'm getting an error that mouse is undefined.

Previously, I found that coordinates of a subject's mouse clicks were logged as cursor_x and cursor_y, but when I try using these variables in javascript it says these are undefined as well. I think it'll be an easy fix but let me know if anyone's able to help!

Thanks,

Zach

lvanderlinden

Hi @zach_researcher ,

Indeed, you can't use the Mouse object in an inline_javascript item like you can in a Python inline_script. But you can use a mouse_response item and then use the resulting cursor_x and cursor_y variables in a subsequent inline_javascript item. Two things come to mind:

• Are you sure you are in the Run tab of your inline_javascript item? Otherwise the variables won't exist yet...
• Are you using the vars. notation (instead of the usual var.), like so?

console.log(vars.cursor_x)

If you upload your experiment here, we can have a closer look, if needed.

Good luck!

Lotje

zach_researcher

Hi @lvanderlinden ,

I actually sorted it out! I'm not sure if there's a way around this but each time I mentioned the variables I wrote it as vars.cursor_x and vars.cursor_y. I also defined both variables as 0 at the beginning of the experiment

Thanks,

Zach

lvanderlinden

Great to hear @zach_researcher !