ChordPic VS Scales-Chords

I am having issues with this webapp I am trying to make, here is a link to my code. This tool is meant to be for making chord diagrams for a guitar, see this is my inspiration The issue I am having right now is when I click on the vertical line between the horizontal lines it is supposed to add a solid circle representing that a finger is going on that spot of the fretboard. What I want is that when you click that... Source: about 1 year ago

Https://chordpic.com/ : very useful site for creating your own chordboxes. Source: over 1 year ago

Edit: and then there are sites that use all sharps, like https://scales-chords.com which I use all the time and it's actually kind of annoying that everything is in sharps since I've recently become more used to flats. But it just makes me wonder why the site owner has everything in sharps. Source: 9 months ago

Scales-chords.com also has a similar chord naming tool, among some other useful tools https://www.scales-chords.com/chord-namer/. Source: over 1 year ago

You should check out scales-chords.com, very good n helpful. Source: about 2 years ago

Scales-chords.com is a great tool for non-players. Source: over 2 years ago

Hmmm... A Dorian b2 or Eb diminished Lydian. Eh, forget the 'hmmm' am not savvy. When in doubt go to scales-chords.com there are resources to play there with scales and chords. Source: over 2 years ago