As far as I know there are these;

• Camel case = coolFileName
• Snake case = cool_file_name
• Kebab case = cool-file-name
• Pascal case = CoolFileName
• Dot notation = cool.file.name
• Flat case = coolfilename
• Screaming case = COOLFILENAME

Personally I prefer the kebab/dot conventions simply because they allow for easy “navigation” with (ctrl+arrow keys) between each part. What are your preferences when it comes to this? Did I miss any schemes?