What is the difference between `arguments` object and rest parameters `…args`?

Explanation

The main difference between `arguments` object and rest parameters `...args` is that `arguments` is array-like and available in regular functions, while rest parameters create a real Array and work in arrow functions. This distinction allows rest parameters to support array methods directly.

Key points

`arguments` is array-like, while rest parameters create a real Array
`arguments` is available in regular functions, rest parameters work in arrow functions
`arguments` does not support array methods, rest parameters do
Rest parameters only include excess arguments, while `arguments` includes named params too

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