Here you will get an overview of the different code cases that are widely used.
In programming, camelCase formatting for variable names looks like this:
var camelCase = "lower-case first word, capitalize each subsequent word";
PascalCase (or CamelCase) is a variant of camelCase. It differs from camelCase by capitalizing every word, including the first word:
var PascalCase = "upper-case every word";
Another popular case called snake_case separates each word with underscores in this manner:
var snake_case = "lower-case everything, but separate words with underscores";