Here you will get an overview of the different code case that are used widely used.
In programming camelCase formatting for variable names looks like this:
var camelCase = "lower-case first word, capitalize each subsequent word";
Another form of this case, often refered to as PascalCase or just CamelCase, and differs by having each word in the variable capitalized like so:
var PascalCase = "upper-case every word";
Another popular code case for variable naming called snake case involves sperating each word with underscores in this manner:
var snake_case = "lower-case everything, but separate words with underscores";