I was hoping this would be serious study on whether dash-style or underscore_style is better for variable names in code. Such a study would analyze readability,

I was hoping this would be serious study on whether dash-style or underscore_style is better for variable names in code. Such a study would analyze readability, ease of typing, and any other relevant factors. Too bad this article isn’t such a study, while the information it does impart is out-of-date.