I want to add many function with same object img like line 36. I have error. Thanks you.

Question

Add function with img.
https://code.sololearn.com/W1X5sEWXmgqk/?ref=app

Answer 1

Too many quotation marks.
Replace line 36 with
img.style.filter = "opacity(" + b.filter + "),contrast(" + d.filter + ")"

you can also use template literals

img.style.filter = `opacity(${b.filter}), contrast(${d.filter})`;