Key difference with Python - JavaScript allows for camelCase for function arguments and local variables, while Python enforces snake_case for all variable and function names.

  • Function and Variable Naming: Popular convention is camelCase for function arguments and local variables (myFunction, interestingVariable).
  • Class Naming: Traditionally uses PascalCase (first letter of each word capitalized) for constructors (MyClass). However, with the introduction of classes in ES6, some prefer using PascalCase for classes as well (MyClass).
  • Constants: Typically written in ALL_CAPS_WITH_UNDERSCORES (CONSTANT_NAME).
  • Modules and Packages: Often use lowercase with underscores (my_module.js).