Number of Arguments

Requirements

• Implement numberOfArguments(...args), returning how many arguments were passed in that call.
• Count every supplied value, including undefined, null, false, zero, and empty strings.
• An array or object passed as a single argument counts once. Spreading an array counts its elements separately.
• Return zero for a call with no arguments. Count call arguments rather than declared parameters.

Examples

Input: numberOfArguments(1, undefined, false)
Output: 3

Input: numberOfArguments([1, 2])
Output: 1